diff --git a/pkgs/development/compilers/llvm/3.9/clang/default.nix b/pkgs/development/compilers/llvm/3.9/clang/default.nix
index c6605dd656f..e75da0e9717 100644
--- a/pkgs/development/compilers/llvm/3.9/clang/default.nix
+++ b/pkgs/development/compilers/llvm/3.9/clang/default.nix
@@ -34,7 +34,7 @@ let
     # Clang expects to find sanitizer libraries in its own prefix
     postInstall = ''
       ln -sv ${llvm}/lib/LLVMgold.so $out/lib
-      ln -sv ${llvm}/lib/clang/3.9.0/lib $out/lib/clang/3.9.0/
+      ln -sv ${llvm}/lib/clang/${version}/lib $out/lib/clang/${version}/
       ln -sv $out/bin/clang $out/bin/cpp
     '';
 
diff --git a/pkgs/development/compilers/llvm/3.9/default.nix b/pkgs/development/compilers/llvm/3.9/default.nix
index 7b9dbd93b2b..a39f013d1a9 100644
--- a/pkgs/development/compilers/llvm/3.9/default.nix
+++ b/pkgs/development/compilers/llvm/3.9/default.nix
@@ -6,7 +6,7 @@ let
 
   fetch = fetch_v version;
   fetch_v = ver: name: sha256: fetchurl {
-    url = "http://llvm.org/releases/3.9.0/${name}-${ver}.src.tar.xz";
+    url = "http://llvm.org/releases/${version}/${name}-${ver}.src.tar.xz";
     inherit sha256;
   };