diff --git a/Makefile b/Makefile
index 7e4333c..043bcea 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ KLIBC=/home/src/klibc/klibc-0.77
 KLIBC_GCC = gcc -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32
 
 CC = $(CROSS_COMPILE)gcc
-CXFLAGS = -ggdb
+CXFLAGS ?= -ggdb
 CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
 ifdef WARN_UNUSED
 CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3