diff --git a/rules.mk b/rules.mk
index 972ee0b..247d3fd 100644
--- a/rules.mk
+++ b/rules.mk
@@ -8,7 +8,7 @@ AR         ?= $(CROSS)ar
 STRIP      ?= $(CROSS)strip
 INSTALL    := install --backup=off
 STRIPINST  := $(INSTALL) -s --strip-program=$(CROSS)strip -m 0755
-
+CFLAGS     += -g -O0
 CPPFLAGS   += -D_GNU_SOURCE
 ARFLAGS     = crus