diff --git a/Makefile b/Makefile
index 11a850cffd3d95868ba73a8dbcd4dc0de94e7c1d..82f76a96cfe661be2818b00dfe8dac5902d9c1db 100644
--- a/Makefile
+++ b/Makefile
@@ -528,7 +528,7 @@ export MODLIB
 
 ifdef INSTALL_MOD_STRIP
 ifeq ($(INSTALL_MOD_STRIP),1)
-mod_strip_cmd = $STRIP) --strip-debug
+mod_strip_cmd = $(STRIP) --strip-debug
 else
 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
 endif # INSTALL_MOD_STRIP=1