diff --git a/util/autoport/log_maker.go b/util/autoport/log_maker.go
index 50e0e65..7c8240e 100644
--- a/util/autoport/log_maker.go
+++ b/util/autoport/log_maker.go
@@ -89,7 +89,7 @@
 
 	switch opt {
 	case "y", "yes":
-		opt += " -f"
+		inteltoolArgs += "f"
 	}
 
 	RunAndSave(outDir+"/inteltool.log", "../inteltool/inteltool", inteltoolArgs)