diff --git a/makefile b/makefile
index dc236c2..80ab995 100644
--- a/makefile
+++ b/makefile
@@ -1,12 +1,10 @@
 CC = gcc
 CFLAGS = -Wall -pedantic --std=c99 -O2
 
-bmon: bmon.o
+bmon: bmon.c
 
 dbg:
-	gcc $(CFLAGS) -g bmon.c -o bmon-dbg
-
-bmon.o: bmon.c
+	gcc -O0 -g bmon.c -o bmon-dbg
 
 clean:
-	rm *.o bmon bmon-dbg 2> /dev/null
+	rm -f  bmon bmon-dbg