diff --git a/pkgs/development/interpreters/maude/default.nix b/pkgs/development/interpreters/maude/default.nix
index 20eb111d745..dd6a82c3def 100644
--- a/pkgs/development/interpreters/maude/default.nix
+++ b/pkgs/development/interpreters/maude/default.nix
@@ -1,21 +1,17 @@
 { stdenv, fetchurl, flex, bison, ncurses, buddy, tecla, gmp }:
 
-stdenv.mkDerivation rec
-{
+stdenv.mkDerivation rec {
   name = "maude-2.3";
-  meta =
-  {
+  meta = {
     homepage = "http://maude.cs.uiuc.edu/";
     description = "Maude -- a high-level specification language";
     license = "GPLv2";
   };
-  src = fetchurl
-  {
+  src = fetchurl {
     url = "http://maude.cs.uiuc.edu/download/current/Maude-2.3.tar.gz";
     sha256 = "1nzxj8x1379nxsdvldqy55wl513hdi4xwf8i2bhngz7s8228vs37";
   };
-  docs = fetchurl
-  {
+  docs = fetchurl {
     url = "http://mirror.switch.ch/mirror/gentoo/distfiles/maude-2.3.0-extras.tar.bz2";
     sha256 = "0kd5623k1wwj1rk4b6halrm3sdvd9kbiwg1hi2c3qim1nlfdgl0d";
   };
diff --git a/pkgs/development/interpreters/maude/unstable.nix b/pkgs/development/interpreters/maude/unstable.nix
index d96df5ee70b..c0ff92fa14b 100644
--- a/pkgs/development/interpreters/maude/unstable.nix
+++ b/pkgs/development/interpreters/maude/unstable.nix
@@ -1,26 +1,21 @@
 { stdenv, fetchurl, flex, bison, ncurses, buddy, tecla, libsigsegv, gmp }:
 
-stdenv.mkDerivation rec
-{
+stdenv.mkDerivation rec {
   name = "maude-2.4-alpha-91";
-  meta =
-  {
+  meta = {
     homepage = "http://maude.cs.uiuc.edu/";
     description = "Maude -- a high-level specification language";
     license = "GPLv2";
   };
-  src = fetchurl
-  {
+  src = fetchurl {
     url = "http://www.csl.sri.com/users/eker/Maude/Alpha91/Maude-2.4.tar.gz";
     sha256 = "1gvfzp10inhvzk2xnv128nmh38vw6si7hg72bxis3l4h8f6ki7l0";
   };
-  fullMaude = fetchurl
-  {
+  fullMaude = fetchurl {
     url = "http://www.lcc.uma.es/~duran/FullMaude/FM23j/full-maude.maude";
     sha256 = "1x25ckfh1dzn8pg5spzj7f23bkz0favybnaxww8qs29r3lsrl1ib";
   };
-  docs = fetchurl
-  {
+  docs = fetchurl {
     url = "http://mirror.switch.ch/mirror/gentoo/distfiles/maude-2.3.0-extras.tar.bz2";
     sha256 = "0kd5623k1wwj1rk4b6halrm3sdvd9kbiwg1hi2c3qim1nlfdgl0d";
   };
diff --git a/pkgs/development/libraries/boost/1.35.0.nix b/pkgs/development/libraries/boost/1.35.0.nix
index 08540862c0f..10e84fbad35 100644
--- a/pkgs/development/libraries/boost/1.35.0.nix
+++ b/pkgs/development/libraries/boost/1.35.0.nix
@@ -2,25 +2,19 @@
 
 assert version == "1.35.0";
 
-stdenv.mkDerivation
-{
+stdenv.mkDerivation {
   name = "boost-1.35.0";
-  meta =
-  {
+  meta = {
     homepage = "http://boost.org/";
     description = "Boost C++ Library Collection";
     license = "boost-license";
   };
-  src = fetchurl
-  {
+  src = fetchurl {
     url = "mirror://sourceforge/boost/boost_1_35_0.tar.bz2";
     sha256 = "f8bf7368a22ccf2e2cf77048ab2129744be4c03f8488c76ad31c0aa229b280da";
   };
   buildInputs = [icu zlib bzip2 python];
-
-  preConfigure = "
-    sed -e 's@^BJAM_CONFIG=\"\"@BJAM_CONFIG=\"--layout=system variant=debug,release threading=single,multi link=shared,static\"@g' -i configure
-  ";
-
+  preConfigure =
+    "sed -e 's@^BJAM_CONFIG=\"\"@BJAM_CONFIG=\"--layout=system variant=debug,release threading=single,multi link=shared,static\"@g' -i configure";
   configureFlags = "--with-icu=${icu} --with-python=${python}";
 }
diff --git a/pkgs/development/tools/build-managers/scons/default.nix b/pkgs/development/tools/build-managers/scons/default.nix
index 077d4e452ec..8d53ca6d23e 100644
--- a/pkgs/development/tools/build-managers/scons/default.nix
+++ b/pkgs/development/tools/build-managers/scons/default.nix
@@ -2,8 +2,7 @@
 
 stdenv.mkDerivation {
   name = "scons-${version}";
-  meta =
-  {
+  meta = {
     homepage = "http://scons.org/";
     description = "An improved, cross-platform substitute for Make";
     longDescription =
@@ -15,8 +14,7 @@ stdenv.mkDerivation {
        software.
     '';
   };
-  src = fetchurl
-  {
+  src = fetchurl {
     url = "mirror://sourceforge/scons/scons-${version}.tar.gz";
     sha256 = "${versionHash}";
   };
diff --git a/pkgs/tools/networking/pdsh/default.nix b/pkgs/tools/networking/pdsh/default.nix
index 10837bea71a..d920816c141 100644
--- a/pkgs/tools/networking/pdsh/default.nix
+++ b/pkgs/tools/networking/pdsh/default.nix
@@ -1,16 +1,13 @@
 {stdenv, fetchurl, perl, readline, ssh, pam}:
 
-stdenv.mkDerivation rec
-{
+stdenv.mkDerivation rec {
   name = "pdsh-2.16";
-  meta =
-  {
+  meta = {
     homepage = "https://computing.llnl.gov/linux/pdsh.html";
     description = "A high-performance, parallel remote shell utility.";
     license = "GPLv2";
   };
-  src = fetchurl
-  {
+  src = fetchurl {
     url = "mirror://sourceforge/pdsh/${name}.tar.bz2";
     sha256 = "8891cd3b175d3075f7c71fa4ee2b077306117ada5dd8c0966caaa3b74eca3a3e";
   };