diff --git a/pkgs/games/keen4/builder.sh b/pkgs/games/keen4/builder.sh
index 3c9a1e9eb2d2..c59308429611 100644
--- a/pkgs/games/keen4/builder.sh
+++ b/pkgs/games/keen4/builder.sh
@@ -1,4 +1,5 @@
 
+# shellcheck source=/dev/null
 source "$stdenv"/setup
 
 mkdir -p "$out"/share/keen4