diff --git a/Makefile b/Makefile
index 54e4dc062..bd3ec046f 100644
--- a/Makefile
+++ b/Makefile
@@ -79,7 +79,7 @@ $(SCOPE_EXE): $(SCOPE_BACKEND_BUILD_UPTODATE)
 	    }
 
 %.codecgen.go: $(SCOPE_BACKEND_BUILD_UPTODATE)
-	env -u GOARCH -u GOOS $(GO) build -i -tags $(GO_BUILD_TAGS) ./$(@D)
+	rm -f $@ && env -u GOARCH -u GOOS $(GO) build -i -tags $(GO_BUILD_TAGS) ./$(@D) # workaround for https://github.com/ugorji/go/issues/145
 	cd $(@D) && env -u GOARCH -u GOOS GOGC=off $(shell pwd)/$(CODECGEN_EXE) -rt $(GO_BUILD_TAGS) -u -o $(@F) $(notdir $(call GET_CODECGEN_DEPS,$(@D)))
 
 $(CODECGEN_EXE): $(SCOPE_BACKEND_BUILD_UPTODATE)