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-rw-r--r--pkgs/misc/emulators/wine/base.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/misc/emulators/wine/base.nix b/pkgs/misc/emulators/wine/base.nix
index 2b9d048f77e6..4c3a2b2d588f 100644
--- a/pkgs/misc/emulators/wine/base.nix
+++ b/pkgs/misc/emulators/wine/base.nix
@@ -7,7 +7,7 @@
 
 with import ./util.nix { inherit lib; };
 
-stdenv.mkDerivation ((lib.optionalAttrs (! isNull buildScript) {
+stdenv.mkDerivation ((lib.optionalAttrs (buildScript != null) {
   builder = buildScript;
 }) // rec {
   inherit name src configureFlags;