diff --git a/Makefile b/Makefile
index 3f376ef..41f8962 100644
--- a/Makefile
+++ b/Makefile
@@ -13,16 +13,18 @@ GOARCH = $(shell go env GOARCH)
 
 LIBRARY = $(GOPATH)/pkg/$(GOOS)_$(GOARCH)/$(PACKAGE).a
 
-.PHONY: all clean
+.PHONY: all clean .version.new
 
 all: $(LIBRARY)
 
 $(LIBRARY): $(SOURCES)
 	go install $(PACKAGE)
 
-.version:
-	-@printf "%s\n%s\n%s" "$(VERSION)" "$(REVISION)" >$@.new
-	-@diff $@ $@.new >/dev/null 2>&1 && rm $@.new || mv $@.new $@
+.version.new:
+	-@printf "%s\n%s\n%s" "$(VERSION)" "$(REVISION)" >$@
+
+.version: .version.new
+	-@diff $@ $< >/dev/null 2>&1 && rm $< || mv $< $@
 
 version.go: version.go.m4 .version
 	-@m4 -Dm4_version=$(VERSION) \