diff --git a/Makefile b/Makefile
index 77ea707..8e9f9ef 100644
--- a/Makefile
+++ b/Makefile
@@ -719,7 +719,7 @@
 export mod_strip_cmd
 
 
-ifeq ($(CONFIG_MODULE_SIG),y)
+ifdef CONFIG_MODULE_SIG_ALL
 MODSECKEY = ./signing_key.priv
 MODPUBKEY = ./signing_key.x509
 export MODPUBKEY