diff --git a/Makefile b/Makefile
index 59a3c46..1d285ed 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ deps:
 	rm -rf /home/travis/gopath/src/go.etcd.io/etcd/vendor/golang.org/x/net/trace
 
 build: deps
-	go build $(GO_FLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY) $(SOURCE_DIR)
+	go build $(GO_FLAGS) -ldflags "-X github.com/chrislusf/seaweedfs/weed/util.COMMIT=${COMMIT} -extldflags $(LDFLAGS)" -o $(BINARY) $(SOURCE_DIR)
 
 linux: deps
 	mkdir -p linux