diff --git a/wireless/wapi/src/util.c b/wireless/wapi/src/util.c
index e30fd4fad..e44df96f8 100644
--- a/wireless/wapi/src/util.c
+++ b/wireless/wapi/src/util.c
@@ -148,7 +148,7 @@ static bool wapi_json_update(FAR cJSON *root,
           int len = strlen(obj->valuestring);
           if (len > 0)
             {
-              if (!strncmp(value, obj->valuestring, len))
+              if (!strcmp(value, obj->valuestring))
                 {
                   return false;
                 }