diff --git a/GNUmakefile b/GNUmakefile
index 64b6ad2..0b6ffd5 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -31,7 +31,7 @@ define GUILE_MODULE
                   (loop (read-line p)))))))))
 endef
 
-$(guile GUILE_MODULE))
+$(guile $(GUILE_MODULE))
 
 define upload =
 	emacs --quick --batch \