diff --git a/pkgs/development/libraries/haskell/cabal/cabal.nix b/pkgs/development/libraries/haskell/cabal/cabal.nix
index 1fa893d59e56..ba841ff281af 100644
--- a/pkgs/development/libraries/haskell/cabal/cabal.nix
+++ b/pkgs/development/libraries/haskell/cabal/cabal.nix
@@ -17,7 +17,10 @@
             # all packages with haskell- to avoid name clashes for libraries;
             # if that is not desired (for applications), name can be set to
             # fname.
-            name = "haskell-${self.pname}-ghc${ghc.ghc.version}-${self.version}";
+            name = if enableLibraryProfiling then
+                     "haskell-${self.pname}-ghc${ghc.ghc.version}-profiling-${self.version}"
+                   else
+                     "haskell-${self.pname}-ghc${ghc.ghc.version}-${self.version}";
 
             # the default download location for Cabal packages is Hackage,
             # you still have to specify the checksum
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fa2a5967b121..56d948cb95c5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2247,6 +2247,7 @@ let
 
   haskellPackages_ghc6101 = import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.10.1.nix {
       inherit fetchurl stdenv perl ncurses gmp libedit;
       ghc = ghc6101Binary;
@@ -2255,6 +2256,7 @@ let
 
   haskellPackages_ghc6102 = import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.10.2.nix {
       inherit fetchurl stdenv perl ncurses gmp libedit;
       ghc = ghc6101Binary;
@@ -2263,6 +2265,7 @@ let
 
   haskellPackages_ghc6103 = import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.10.3.nix {
       inherit fetchurl stdenv perl ncurses gmp libedit;
       ghc = ghc6101Binary;
@@ -2271,6 +2274,7 @@ let
 
   haskellPackages_ghc6104 = recurseIntoAttrs (import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.10.4.nix {
       inherit fetchurl stdenv perl ncurses gmp libedit;
       ghc = ghc6101Binary;
@@ -2280,6 +2284,7 @@ let
   # make this ghc default when it's supported by the Haskell Platform
   haskellPackages_ghc6121 = lowPrio (import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.12.1.nix {
       inherit fetchurl stdenv perl ncurses gmp;
       ghc = ghc6101Binary;
@@ -2288,6 +2293,7 @@ let
 
   haskellPackages_ghc6122 = lowPrio (import ./haskell-packages.nix {
     inherit pkgs;
+    enableLibraryProfiling = getConfig [ "cabal" "libraryProfiling" ] false;
     ghc = import ../development/compilers/ghc/6.12.2.nix {
       inherit fetchurl stdenv perl ncurses gmp;
       ghc = ghc6101Binary;
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 14329b9067ce..425b6754a112 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1,4 +1,4 @@
-{pkgs, ghc}:
+{pkgs, ghc, enableLibraryProfiling ? false}:
 
 let ghcReal = pkgs.lowPrio ghc; in
 
@@ -21,7 +21,7 @@ rec {
 
   cabal = import ../development/libraries/haskell/cabal/cabal.nix {
     inherit (pkgs) stdenv fetchurl lib;
-    inherit ghc;
+    inherit ghc enableLibraryProfiling;
   };