diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 48529707ce4..dcfa8b08c91 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -255,6 +255,9 @@ self: super: {
     sha256 = "1gs8p89d1qsrd1qycbhf6kv4qw0sbb8m6dy106dqkmdzcjzcyq74";
   });
 
+  # Already applied in darcs repository.
+  gnuplot = appendPatch super.gnuplot ./gnuplot-fix-new-time.patch;
+
   ghcjs-prim = self.callPackage ({ mkDerivation, fetchgit, primitive }: mkDerivation {
     pname = "ghcjs-prim";
     version = "0.1.0.0";
diff --git a/pkgs/development/haskell-modules/gnuplot-fix-new-time.patch b/pkgs/development/haskell-modules/gnuplot-fix-new-time.patch
new file mode 100644
index 00000000000..1b4a60e5941
--- /dev/null
+++ b/pkgs/development/haskell-modules/gnuplot-fix-new-time.patch
@@ -0,0 +1,60 @@
+diff -ru3 gnuplot-0.5.3.1-old/gnuplot.cabal gnuplot-0.5.3.1/gnuplot.cabal
+--- gnuplot-0.5.3.1-old/gnuplot.cabal	2015-04-17 22:25:06.561715968 +0300
++++ gnuplot-0.5.3.1/gnuplot.cabal	2015-04-17 22:27:07.610913755 +0300
+@@ -75,7 +75,7 @@
+ 
+ Library
+   Build-Depends:
+-    filepath >=1.1 && <1.4,
++    filepath >=1.1 && <1.5,
+     temporary >=1.1 && <1.3,
+     array >=0.1 && <0.6,
+     containers >=0.1 && <0.6,
+@@ -83,12 +83,11 @@
+     data-accessor-transformers >=0.2.1 && <0.3,
+     data-accessor >=0.2.2 && <0.3,
+     transformers >=0.3 && <0.5,
+-    deepseq >=1.0 && <1.4
++    deepseq >=1.0 && <1.5
+   If flag(splitBase)
+     Build-Depends:
+-      process >=1.0,
+-      time >=1.1,
+-      old-locale >=1.0,
++      process >=1.0 && <1.3,
++      time >=1.1 && <1.6,
+       base >=2 && <5
+   Else
+     Build-Depends:
+diff -ru3 gnuplot-0.5.3.1-old/src/Graphics/Gnuplot/Time.hs gnuplot-0.5.3.1/src/Graphics/Gnuplot/Time.hs
+--- gnuplot-0.5.3.1-old/src/Graphics/Gnuplot/Time.hs	2015-04-17 22:25:06.560715975 +0300
++++ gnuplot-0.5.3.1/src/Graphics/Gnuplot/Time.hs	2015-04-17 22:27:49.872542430 +0300
+@@ -1,7 +1,6 @@
+ module Graphics.Gnuplot.Time where
+ 
+-import System.Locale (defaultTimeLocale, )
+-import Data.Time.Format (FormatTime, formatTime, )
++import Data.Time.Format (FormatTime, formatTime, defaultTimeLocale, )
+ import Data.Tuple.HT (mapFst, )
+ 
+ {- |
+diff -ru3 gnuplot-0.5.3.1-old/src/Graphics/Gnuplot/Value/Tuple.hs gnuplot-0.5.3.1/src/Graphics/Gnuplot/Value/Tuple.hs
+--- gnuplot-0.5.3.1-old/src/Graphics/Gnuplot/Value/Tuple.hs	2015-04-17 22:25:06.560715975 +0300
++++ gnuplot-0.5.3.1/src/Graphics/Gnuplot/Value/Tuple.hs	2015-04-17 22:28:24.426238829 +0300
+@@ -9,7 +9,6 @@
+    ColumnCount(ColumnCount),
+    ) where
+ 
+-import System.Locale (defaultTimeLocale, )
+ import qualified Data.Time as Time
+ 
+ import Data.Word (Word8, Word16, Word32, Word64, )
+@@ -82,7 +81,7 @@
+ instance C Time.Day where
+    text d = text $ Time.UTCTime d 0
+ instance C Time.UTCTime where
+-   text = singleton . showString . Time.formatTime defaultTimeLocale "%s"
++   text = singleton . showString . Time.formatTime Time.defaultTimeLocale "%s"
+ 
+ 
+ instance (C a, C b) => C (a,b) where