diff --git a/pkgs/development/libraries/qt-4.x/4.8/default.nix b/pkgs/development/libraries/qt-4.x/4.8/default.nix
index d5bd065ab64..1d0429e9e75 100644
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@@ -47,6 +47,8 @@ stdenv.mkDerivation rec {
   prePatch = ''
     substituteInPlace configure --replace /bin/pwd pwd
     substituteInPlace src/corelib/global/global.pri --replace /bin/ls ${coreutils}/bin/ls
+    substituteInPlace src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp \
+      --replace 'asm volatile' 'asm'
     sed -e 's@/\(usr\|opt\)/@/var/empty/@g' -i config.tests/*/*.test -i mkspecs/*/*.conf
   '' + lib.optionalString stdenv.isDarwin ''
     # remove impure reference to /usr/lib/libstdc++.6.dylib