diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6847c309caf..3f0efc2d8f4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10809,6 +10809,7 @@ with pkgs;
 
   opal = callPackage ../development/libraries/opal {
     ffmpeg = ffmpeg_2;
+    stdenv = overrideCC stdenv gcc6;
   };
 
   openh264 = callPackage ../development/libraries/openh264 { };