diff --git a/pkgs/development/compilers/ghcjs-ng/default.nix b/pkgs/development/compilers/ghcjs-ng/default.nix
index dda414620e0..93257ff7d53 100644
--- a/pkgs/development/compilers/ghcjs-ng/default.nix
+++ b/pkgs/development/compilers/ghcjs-ng/default.nix
@@ -48,7 +48,7 @@ let
     stage1Packages = [];
     mkStage2 = _: {};
 
-    haskellCompilerName = "ghcjs";
+    haskellCompilerName = "ghcjs-${bootGhcjs.version}";
   };
 
   bootGhcjs = haskellLib.justStaticExecutables passthru.bootPkgs.ghcjs;
diff --git a/pkgs/development/compilers/ghcjs/base.nix b/pkgs/development/compilers/ghcjs/base.nix
index 07662d32d25..98eb58e6aae 100644
--- a/pkgs/development/compilers/ghcjs/base.nix
+++ b/pkgs/development/compilers/ghcjs/base.nix
@@ -174,7 +174,7 @@ in mkDerivation (rec {
     isGhcjs = true;
     inherit nodejs ghcjsBoot;
     socket-io = pkgs.nodePackages."socket.io";
-    haskellCompilerName = "ghcjs";
+    haskellCompilerName = "ghcjs-${version}";
 
     # let us assume ghcjs is never actually cross compiled
     targetPrefix = "";