diff --git a/subprojects/gst-plugins-base/gst-libs/gst/gl/x11/gstglcontext_glx.c b/subprojects/gst-plugins-base/gst-libs/gst/gl/x11/gstglcontext_glx.c
index 7dd719a6c1..6b4a373706 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/gl/x11/gstglcontext_glx.c
+++ b/subprojects/gst-plugins-base/gst-libs/gst/gl/x11/gstglcontext_glx.c
@@ -1044,6 +1044,8 @@ gst_gl_context_glx_fill_info (GstGLContext * context, GError ** error)
       GST_GL_CONTEXT_WRAPPED_GL_CONFIG_NAME, config,
       (GDestroyNotify) gst_structure_free);
 
+  XFree (fbconfigs);
+
   return TRUE;
 
 failure: