diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,7 @@
+0.3.4.2
+	* Fix build on GHC-7.4.
+	  Courtesy of Adam Bergmark..
+
 0.3.4.1
 	* Fix build on GHC-7.0.4
 
diff --git a/scientific.cabal b/scientific.cabal
--- a/scientific.cabal
+++ b/scientific.cabal
@@ -1,5 +1,5 @@
 name:                scientific
-version:             0.3.4.1
+version:             0.3.4.2
 synopsis:            Numbers represented using scientific notation
 description:
   @Data.Scientific@ provides the number type 'Scientific'. Scientific numbers are
@@ -88,9 +88,6 @@
   if flag(bytestring-builder)
     exposed-modules:   Data.ByteString.Builder.Scientific
     build-depends:     bytestring >= 0.10 && < 0.11
-
-  if impl(ghc >= 7.2.1)
-    cpp-options: -DGENERICS
 
 test-suite test-scientific
   type:             exitcode-stdio-1.0
diff --git a/src/Data/ByteString/Builder/Scientific.hs b/src/Data/ByteString/Builder/Scientific.hs
--- a/src/Data/ByteString/Builder/Scientific.hs
+++ b/src/Data/ByteString/Builder/Scientific.hs
@@ -22,6 +22,8 @@
 import           Data.ByteString.Builder.Extra (byteStringCopy)
 #endif
 
+import Utils (roundTo, i2d)
+
 #if !MIN_VERSION_base(4,8,0)
 import Data.Monoid                  (mempty)
 #endif
@@ -35,7 +37,6 @@
 infixr 6 <>
 #endif
 
-import Utils (roundTo, i2d)
 
 -- | A @ByteString@ @Builder@ which renders a scientific number to full
 -- precision, using standard decimal notation for arguments whose
diff --git a/src/Data/Scientific.hs b/src/Data/Scientific.hs
--- a/src/Data/Scientific.hs
+++ b/src/Data/Scientific.hs
@@ -5,10 +5,6 @@
 {-# LANGUAGE UnboxedTuples #-}
 {-# LANGUAGE PatternGuards #-}
 
-#ifdef GENERICS
-{-# LANGUAGE DeriveGeneric #-}
-#endif
-
 -- |
 -- Module      :  Data.Scientific
 -- Copyright   :  Bas van Dijk 2013