diff --git a/main.go b/main.go
index 8c2aebf..51ba761 100644
--- a/main.go
+++ b/main.go
@@ -56,7 +56,7 @@ func isError(err error) bool {
 func readJson() {
 	envPath, isSet := os.LookupEnv("CHARSHEET")
 	switch {
-	case pathFlag != "":
+	case len(pathFlag) > 0:
 		path = pathFlag
 	case isSet:
 		path = envPath