diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 23f02232a51d..a5b24197f253 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1052,7 +1052,7 @@ static int nfs_get_option_str(substring_t args[], char **option)
 {
 	kfree(*option);
 	*option = match_strdup(args);
-	return !option;
+	return !*option;
 }
 
 static int nfs_get_option_ul(substring_t args[], unsigned long *option)