diff --git a/lib/licenses.nix b/lib/licenses.nix
index 1ec0e5149c9..a5f1fc0f0f2 100644
--- a/lib/licenses.nix
+++ b/lib/licenses.nix
@@ -210,6 +210,11 @@ lib.mapAttrs (n: v: v // { shortName = n; }) rec {
     fullName = "Common Public License 1.0";
   };
 
+  curl = {
+    fullName = "MIT/X11 derivate";
+    url = "https://curl.haxx.se/docs/copyright.html";
+  };
+
   doc = spdx {
     spdxId = "DOC";
     fullName = "DOC License";
diff --git a/pkgs/applications/version-management/cvs/default.nix b/pkgs/applications/version-management/cvs/default.nix
index 71fb7612b33..2063149dd78 100644
--- a/pkgs/applications/version-management/cvs/default.nix
+++ b/pkgs/applications/version-management/cvs/default.nix
@@ -32,9 +32,10 @@ stdenv.mkDerivation {
 
   doCheck = false; # fails 1 of 1 tests
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://cvs.nongnu.org;
     description = "Concurrent Versions System - a source control system";
-    platforms = stdenv.lib.platforms.all;
+    license = licenses.gpl2; # library is GPLv2, main is GPLv1
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/development/tools/parsing/flex/2.5.35.nix b/pkgs/development/tools/parsing/flex/2.5.35.nix
index 1062a361413..3e40ddee9d9 100644
--- a/pkgs/development/tools/parsing/flex/2.5.35.nix
+++ b/pkgs/development/tools/parsing/flex/2.5.35.nix
@@ -17,10 +17,11 @@ stdenv.mkDerivation rec {
     "ac_cv_func_realloc_0_nonnull=yes"
   ];
 
-  meta = {
+  meta = with stdenv.lib; {
     branch = "2.5.35";
     homepage = http://flex.sourceforge.net/;
     description = "A fast lexical analyser generator";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.bsd2;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/tools/parsing/flex/2.6.1.nix b/pkgs/development/tools/parsing/flex/2.6.1.nix
index 954c2bbcb24..81685b6ee66 100644
--- a/pkgs/development/tools/parsing/flex/2.6.1.nix
+++ b/pkgs/development/tools/parsing/flex/2.6.1.nix
@@ -26,9 +26,10 @@ stdenv.mkDerivation rec {
     substituteInPlace Makefile.in --replace "tests" " ";
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = https://github.com/westes/flex;
     description = "A fast lexical analyser generator";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.bsd2;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/tools/parsing/flex/default.nix b/pkgs/development/tools/parsing/flex/default.nix
index 17323a06cc1..2a91baa80b3 100644
--- a/pkgs/development/tools/parsing/flex/default.nix
+++ b/pkgs/development/tools/parsing/flex/default.nix
@@ -41,9 +41,10 @@ stdenv.mkDerivation rec {
 
   dontDisableStatic = stdenv.buildPlatform != stdenv.hostPlatform;
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = https://github.com/westes/flex;
     description = "A fast lexical analyser generator";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.bsd2;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/os-specific/linux/atop/default.nix b/pkgs/os-specific/linux/atop/default.nix
index 7b4ac9e1f3b..739342b77fd 100644
--- a/pkgs/os-specific/linux/atop/default.nix
+++ b/pkgs/os-specific/linux/atop/default.nix
@@ -33,15 +33,16 @@ stdenv.mkDerivation rec {
     make systemdinstall $makeFlags
   '';
 
-  meta = {
-    platforms = stdenv.lib.platforms.linux;
-    maintainers = with stdenv.lib.maintainers; [raskin];
+  meta = with stdenv.lib; {
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ raskin ];
     description = ''Console system performance monitor'';
 
     longDescription = ''
       Atop is an ASCII full-screen performance monitor that is capable of reporting the activity of all processes (even if processes have finished during the interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks and network layers, and for every active process it shows the CPU utilization, memory growth, disk utilization, priority, username, state, and exit code.
     '';
     inherit version;
+    license = licenses.gpl2;
     downloadPage = http://atoptool.nl/downloadatop.php;
   };
 }
diff --git a/pkgs/os-specific/linux/iotop/default.nix b/pkgs/os-specific/linux/iotop/default.nix
index a19b3d4ec16..e2ded7a8fd0 100644
--- a/pkgs/os-specific/linux/iotop/default.nix
+++ b/pkgs/os-specific/linux/iotop/default.nix
@@ -10,9 +10,11 @@ python2Packages.buildPythonApplication rec {
 
   doCheck = false;
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "A tool to find out the processes doing the most IO";
-    maintainers = [ stdenv.lib.maintainers.raskin ];
-    platforms = stdenv.lib.platforms.linux;
+    homepage = http://guichaz.free.fr/iotop;
+    license = licenses.gpl2;
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/misc/bc/default.nix b/pkgs/tools/misc/bc/default.nix
index 52bd28e9748..ea8cefd14d3 100644
--- a/pkgs/tools/misc/bc/default.nix
+++ b/pkgs/tools/misc/bc/default.nix
@@ -1,4 +1,6 @@
-{stdenv, autoreconfHook, buildPackages, fetchurl, flex, readline, ed, texinfo}:
+{ stdenv, autoreconfHook, buildPackages
+, fetchurl, flex, readline, ed, texinfo
+}:
 
 stdenv.mkDerivation rec {
   name = "bc-1.07.1";
@@ -31,6 +33,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "GNU software calculator";
     homepage = http://www.gnu.org/software/bc/;
+    license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/tools/misc/fortune/default.nix b/pkgs/tools/misc/fortune/default.nix
index 59c0396eebe..8e955733598 100644
--- a/pkgs/tools/misc/fortune/default.nix
+++ b/pkgs/tools/misc/fortune/default.nix
@@ -23,8 +23,9 @@ stdenv.mkDerivation {
     rmdir $out/games
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "A program that displays a pseudorandom message from a database of quotations";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.bsdOriginal;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/misc/grub/default.nix b/pkgs/tools/misc/grub/default.nix
index bb565bacfe7..6ba931ad80d 100644
--- a/pkgs/tools/misc/grub/default.nix
+++ b/pkgs/tools/misc/grub/default.nix
@@ -50,7 +50,8 @@ stdenv.mkDerivation {
 
   passthru.grubTarget = "";
 
-  meta = {
-    platforms = stdenv.lib.platforms.linux;
+  meta = with stdenv.lib; {
+    license = licenses.gpl2;
+    platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/misc/less/default.nix b/pkgs/tools/misc/less/default.nix
index 57eeb39f543..c961ea938ba 100644
--- a/pkgs/tools/misc/less/default.nix
+++ b/pkgs/tools/misc/less/default.nix
@@ -13,10 +13,11 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ ncurses ];
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://www.greenwoodsoftware.com/less/;
     description = "A more advanced file pager than ‘more’";
-    platforms = stdenv.lib.platforms.unix;
-    maintainers = [ stdenv.lib.maintainers.eelco ];
+    platforms = platforms.unix;
+    license = licenses.gpl3;
+    maintainers = [ maintainers.eelco ];
   };
 }
diff --git a/pkgs/tools/networking/curl/7_59.nix b/pkgs/tools/networking/curl/7_59.nix
index 71a87a8e9d1..0482bcf5262 100644
--- a/pkgs/tools/networking/curl/7_59.nix
+++ b/pkgs/tools/networking/curl/7_59.nix
@@ -101,6 +101,7 @@ stdenv.mkDerivation rec {
     description = "A command line tool for transferring files with URL syntax";
     homepage    = https://curl.haxx.se/;
     maintainers = with maintainers; [ lovek323 ];
+    license = licenses.curl;
     platforms   = platforms.all;
   };
 }
diff --git a/pkgs/tools/networking/curl/default.nix b/pkgs/tools/networking/curl/default.nix
index d15e6084a8b..d42cdcd4a34 100644
--- a/pkgs/tools/networking/curl/default.nix
+++ b/pkgs/tools/networking/curl/default.nix
@@ -105,6 +105,7 @@ stdenv.mkDerivation rec {
     description = "A command line tool for transferring files with URL syntax";
     homepage    = https://curl.haxx.se/;
     maintainers = with maintainers; [ lovek323 ];
-    platforms   = platforms.all;
+    license = licenses.curl;
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/tools/text/diffutils/default.nix b/pkgs/tools/text/diffutils/default.nix
index 60628e2139c..fff81fbc860 100644
--- a/pkgs/tools/text/diffutils/default.nix
+++ b/pkgs/tools/text/diffutils/default.nix
@@ -20,9 +20,10 @@ stdenv.mkDerivation rec {
     stdenv.lib.optional (coreutils != null) "PR_PROGRAM=${coreutils}/bin/pr"
     ++ stdenv.lib.optional (stdenv.buildPlatform != stdenv.hostPlatform) "gl_cv_func_getopt_gnu=yes";
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://www.gnu.org/software/diffutils/diffutils.html;
     description = "Commands for showing the differences between files (diff, cmp, etc.)";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.gpl3;
+    platforms = platforms.unix;
   };
 }