diff --git a/cmd/mc-router/main.go b/cmd/mc-router/main.go
index 3942832..edf0454 100644
--- a/cmd/mc-router/main.go
+++ b/cmd/mc-router/main.go
@@ -48,6 +48,7 @@ func main() {
 		if err != nil {
 			logrus.WithError(err).Fatal("trying to create cpu profile file")
 		}
+		defer cpuProfileFile.Close()
 
 		logrus.WithField("file", *cpuProfileFile).Info("Starting cpu profiling")
 		err = pprof.StartCPUProfile(cpuProfileFile)