diff --git a/rules.mk b/rules.mk
index ec71c692..2c4acec1 100644
--- a/rules.mk
+++ b/rules.mk
@@ -1,3 +1,5 @@
+.SUFFIXES:
+
 CFLAGS += $(INCLUDES) $(DEFINES)
 
 OBJS = $(addprefix $(BUILD)/, $(notdir %/$(subst .c,.o, $(SRCS))))