diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index cd82b17d15..9ed043c7ae 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -318,7 +318,7 @@ (define-public mesa
              ((or "x86_64-linux" "i686-linux")
               '("-Dvulkan-overlay-layer=true"))
              (_
-              '("")))
+              '()))
 
          ;; Also enable the tests.
          "-Dbuild-tests=true"