diff --git a/src/flb_http_client.c b/src/flb_http_client.c
index 80a643678ee..1dad0cba159 100644
--- a/src/flb_http_client.c
+++ b/src/flb_http_client.c
@@ -2204,6 +2204,11 @@ int flb_http_request_set_authorization(struct flb_http_request *request,
             return -1;
         }
     }
+    else {
+        va_end(arguments);
+
+        return -1;
+    }
 
     va_end(arguments);