diff --git a/Makefile b/Makefile
index 643dcf2..acaa4bc 100644
--- a/Makefile
+++ b/Makefile
@@ -19,8 +19,12 @@ all: blobchain
 
 .PHONY: blobchain
 blobchain: $(OFILES)
-	$(CC) $< -o $@
+	$(CC) $^ -o $@
 
 -include $(DFILES)
 %.o: %.c
 	$(CC) -c $< $(CFLAGS) -o $@
+
+.PHONY: clean
+clean:
+	rm -f $(OFILES) $(DFILES)