diff --git a/http.c b/http.c
index a2720d576d..1ae19e070d 100644
--- a/http.c
+++ b/http.c
@@ -1285,5 +1285,10 @@ void release_http_object_request(struct http_object_request *freq)
 		free(freq->url);
 		freq->url = NULL;
 	}
-	freq->slot = NULL;
+	if (freq->slot != NULL) {
+		freq->slot->callback_func = NULL;
+		freq->slot->callback_data = NULL;
+		release_active_slot(freq->slot);
+		freq->slot = NULL;
+	}
 }