diff --git a/gst-libs/gst/gl/egl/gstglmemoryegl.c b/gst-libs/gst/gl/egl/gstglmemoryegl.c
index 6f04d252e9..15008c13e8 100644
--- a/gst-libs/gst/gl/egl/gstglmemoryegl.c
+++ b/gst-libs/gst/gl/egl/gstglmemoryegl.c
@@ -251,6 +251,10 @@ gst_gl_memory_egl_init_once (void)
     _gl_memory_egl_allocator =
         g_object_new (GST_TYPE_GL_MEMORY_EGL_ALLOCATOR, NULL);
 
+    /* The allocator is never unreffed */
+    GST_OBJECT_FLAG_SET (_gl_memory_egl_allocator,
+        GST_OBJECT_FLAG_MAY_BE_LEAKED);
+
     gst_allocator_register (GST_GL_MEMORY_EGL_ALLOCATOR_NAME,
         gst_object_ref (_gl_memory_egl_allocator));
     g_once_init_leave (&_init, 1);
diff --git a/gst-libs/gst/gl/gstglbuffer.c b/gst-libs/gst/gl/gstglbuffer.c
index 2abdd6d77a..d50fd6d0b9 100644
--- a/gst-libs/gst/gl/gstglbuffer.c
+++ b/gst-libs/gst/gl/gstglbuffer.c
@@ -456,6 +456,9 @@ gst_gl_buffer_init_once (void)
     _gl_buffer_allocator =
         g_object_new (gst_gl_buffer_allocator_get_type (), NULL);
 
+    /* The allocator is never unreffed */
+    GST_OBJECT_FLAG_SET (_gl_buffer_allocator, GST_OBJECT_FLAG_MAY_BE_LEAKED);
+
     gst_allocator_register (GST_GL_BUFFER_ALLOCATOR_NAME,
         gst_object_ref (_gl_buffer_allocator));
     g_once_init_leave (&_init, 1);
diff --git a/gst-libs/gst/gl/gstglmemorypbo.c b/gst-libs/gst/gl/gstglmemorypbo.c
index f959dce080..30b9ecb465 100644
--- a/gst-libs/gst/gl/gstglmemorypbo.c
+++ b/gst-libs/gst/gl/gstglmemorypbo.c
@@ -864,6 +864,8 @@ gst_gl_memory_pbo_init_once (void)
     GST_DEBUG_CATEGORY_INIT (GST_CAT_GL_MEMORY, "glmemory", 0, "OpenGL Memory");
 
     _gl_allocator = g_object_new (GST_TYPE_GL_MEMORY_PBO_ALLOCATOR, NULL);
+    /* The allocator is never unreffed */
+    GST_OBJECT_FLAG_SET (_gl_allocator, GST_OBJECT_FLAG_MAY_BE_LEAKED);
 
     gst_allocator_register (GST_GL_MEMORY_PBO_ALLOCATOR_NAME,
         gst_object_ref (_gl_allocator));
diff --git a/gst-libs/gst/video/gstvideoaggregator.c b/gst-libs/gst/video/gstvideoaggregator.c
index 28b2283557..9046252958 100644
--- a/gst-libs/gst/video/gstvideoaggregator.c
+++ b/gst-libs/gst/video/gstvideoaggregator.c
@@ -2230,6 +2230,10 @@ gst_video_aggregator_init (GstVideoAggregator * vagg,
   g_mutex_lock (&sink_caps_mutex);
   if (klass->sink_non_alpha_caps == NULL) {
     klass->sink_non_alpha_caps = _get_non_alpha_caps_from_template (klass);
+
+    /* The caps is cached */
+    GST_MINI_OBJECT_FLAG_SET (klass->sink_non_alpha_caps,
+        GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
   }
   g_mutex_unlock (&sink_caps_mutex);