diff --git a/Makefile b/Makefile
index 33686aa..d08bc6a 100644
--- a/Makefile
+++ b/Makefile
@@ -37,15 +37,15 @@ CDEFS = -DF_CPU=1000000L -D__AVR__ -D__AVR_ATmega328P__
 CINCS = -I $(INC_DIR)
 
 CDEBUG = -g$(DEBUG)
-CWARN = -Wall -Wextra -Wstrict-prototypes
 CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
 #CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
-CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA)
+CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CSTANDARD) $(CEXTRA)
 
 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
 
 ifeq ($(BUILD),debug)
 	CFLAGS += -DDEBUG
+	CFLAGS += -Wall -Wextra -Wstrict-prototypes
 endif
 
 #Additional libraries.