diff --git a/Makefile b/Makefile
index 3910f98f..db9cf208 100644
--- a/Makefile
+++ b/Makefile
@@ -25,11 +25,11 @@ prefix = /usr/local
 all: CFLAGS += -O2 -DNDEBUG=1
 all: bin/picrin
 
-include $(sort $(wildcard contrib/*/nitro.mk))
-
 debug: CFLAGS += -O0 -g
 debug: bin/picrin
 
+include $(sort $(wildcard contrib/*/nitro.mk))
+
 bin/picrin: $(PICRIN_OBJS) $(CONTRIB_OBJS) lib/libbenz.a
 	$(CC) $(CFLAGS) -o $@ $(PICRIN_OBJS) $(CONTRIB_OBJS) lib/libbenz.a $(LDFLAGS)