diff --git a/pkgs/development/libraries/cutee/default.nix b/pkgs/development/libraries/cutee/default.nix
index eb19283caea..ba1d02380e2 100644
--- a/pkgs/development/libraries/cutee/default.nix
+++ b/pkgs/development/libraries/cutee/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "C++ Unit Testing Easy Environment";
-    homepage    = http://codesink.org/cutee_unit_testing.html;
+    homepage    = http://www.codesink.org/cutee_unit_testing.html;
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ leenaars];
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/gnutls-kdh/generic.nix b/pkgs/development/libraries/gnutls-kdh/generic.nix
index 0e8457a8c54..e7e0672490d 100644
--- a/pkgs/development/libraries/gnutls-kdh/generic.nix
+++ b/pkgs/development/libraries/gnutls-kdh/generic.nix
@@ -84,7 +84,7 @@ stdenv.mkDerivation {
        layer. It adds TLS-KDH ciphers: Kerberos + Diffie-Hellman.
     '';
 
-    homepage = http://www.gnu.org/software/gnutls://github.com/arpa2/gnutls-kdh;
+    homepage = https://github.com/arpa2/gnutls-kdh;
     license = licenses.lgpl21Plus;
     maintainers = with maintainers; [ leenaars ];
     platforms = platforms.all;
diff --git a/pkgs/development/libraries/mimetic/default.nix b/pkgs/development/libraries/mimetic/default.nix
index fc48c85f23c..7a06f9277c9 100644
--- a/pkgs/development/libraries/mimetic/default.nix
+++ b/pkgs/development/libraries/mimetic/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "MIME handling library";
-    homepage    = http://codesink.org/mimetic_mime_library.html;
+    homepage    = http://www.codesink.org/mimetic_mime_library.html;
     license     = licenses.mit;
     maintainers = with maintainers; [ leenaars];
     platforms = platforms.linux;
diff --git a/pkgs/tools/networking/tlspool/default.nix b/pkgs/tools/networking/tlspool/default.nix
index acb5a042ffc..80bac726457 100644
--- a/pkgs/tools/networking/tlspool/default.nix
+++ b/pkgs/tools/networking/tlspool/default.nix
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A supercharged TLS daemon that allows for easy, strong and consistent deployment";
     license = licenses.bsd2;
-    homepage = https://www.tlspool.org;
+    homepage = http://www.tlspool.org;
     maintainers = with maintainers; [ leenaars qknight ];
   };
 }