diff --git a/src/Makefile b/src/Makefile
index 9c52f35..33a25d7 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -5,7 +5,7 @@ all: util
 %.o: %.c
 	gcc $(CFLAGS) -c $<
 
-util: main.c database.o bitmap.o
+util: util.c database.o bitmap.o
 	gcc $(CFLAGS) -o $@ $^
 
 clean:
diff --git a/src/main.c b/src/util.c
similarity index 100%
rename from src/main.c
rename to src/util.c