diff --git a/ext/gl/gstglmixer.c b/ext/gl/gstglmixer.c
index c0486616b2..af9de452b7 100644
--- a/ext/gl/gstglmixer.c
+++ b/ext/gl/gstglmixer.c
@@ -140,10 +140,10 @@ gst_gl_mixer_propose_allocation (GstAggregator * agg,
   GstBufferPool *pool = NULL;
   GstStructure *config;
   GstCaps *caps;
+  GstVideoInfo info;
   guint size = 0;
   gboolean need_pool;
 
-
   if (!GST_AGGREGATOR_CLASS (gst_gl_mixer_parent_class)->propose_allocation
       (agg, agg_pad, decide_query, query))
     return FALSE;
@@ -155,18 +155,16 @@ gst_gl_mixer_propose_allocation (GstAggregator * agg,
   if (caps == NULL)
     goto no_caps;
 
+  if (!gst_video_info_from_caps (&info, caps))
+    goto invalid_caps;
+
+  /* the normal size of a frame */
+  size = info.size;
+
   if (need_pool) {
-    GstVideoInfo info;
-
-    if (!gst_video_info_from_caps (&info, caps))
-      goto invalid_caps;
-
     GST_DEBUG_OBJECT (mix, "create new pool");
     pool = gst_gl_buffer_pool_new (context);
 
-    /* the normal size of a frame */
-    size = info.size;
-
     config = gst_buffer_pool_get_config (pool);
     gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
 
@@ -174,11 +172,12 @@ gst_gl_mixer_propose_allocation (GstAggregator * agg,
       g_object_unref (pool);
       goto config_failed;
     }
-
-    gst_query_add_allocation_pool (query, pool, size, 1, 0);
-    g_object_unref (pool);
   }
 
+  gst_query_add_allocation_pool (query, pool, size, 1, 0);
+  if (pool)
+    g_object_unref (pool);
+
   /* we also support various metadata */
   if (context->gl_vtable->FenceSync)
     gst_query_add_allocation_meta (query, GST_GL_SYNC_META_API_TYPE, 0);