diff --git a/Makefile b/Makefile
index b45586c..140f03a 100644
--- a/Makefile
+++ b/Makefile
@@ -70,7 +70,7 @@ STRIP   ?= strip
 RM      ?= rm -f
 LN      ?= ln -sf
 
-ifeq ($(MAKECMDGOALS), debug)
+ifneq (,$(filter debug,$(MAKECMDGOALS)))
 OPT = -g
 else
 OPT = $(POPT)