--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@
 
 VERSION=1.3.0
 
-CFLAGS=-DVERSION=\"$(VERSION)\" \
+CFLAGS+=-DVERSION=\"$(VERSION)\" \
 	-DCONFIG_DIR=\"$(CONFIG_DIR)\" \
 	-DLOG_FILE=\"$(LOG_FILE)\" \
 	-DLOCK_FILE=\"$(LOCK_FILE)\"\
@@ -18,9 +18,9 @@
 
 all:
 	mkdir -p bin
-	$(CC) $(CFLAGS) -O3 src/*.c -o bin/keyd -ludev
+	$(CC) $(CFLAGS) $(LDFLAGS) -Wall -Wextra -pedantic src/*.c -o bin/keyd -ludev
 debug:
-	$(CC) $(CFLAGS) -O3 src/*.c -o bin/keyd -ludev -pedantic -Wall -Wextra -g
+	$(CC) $(CFLAGS) $(LDFLAGS) -Wall -Wextra -pedantic -DDEBUG -g  src/*.c -o bin/keyd -ludev
 man:
 	pandoc -s -t man man.md | gzip > keyd.1.gz
 clean: