diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 00df7c50d78b..c6ccf866399e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2502,7 +2502,7 @@ rec {
     inherit (xlibs) xextproto libXft libXrender libXrandr randrproto
       libXmu libXinerama xineramaproto libXcursor;
     openglSupport = mesaSupported;
-    mysqlSupport = false;
+    mysqlSupport = getConfig ["qt" "mysql"] false;
   };
 
   qt4 = getVersion "qt4" qt4_alts;