diff --git a/tests/.valgrind.supp b/tests/.valgrind.supp
index 6fb724ff13..f78b3b1f72 100644
--- a/tests/.valgrind.supp
+++ b/tests/.valgrind.supp
@@ -148,3 +148,16 @@
     fun:virObjectUnref
     fun:main
 }
+#
+# types registered with GLib are never freed
+#
+{
+    glibTypeRegisterLeak
+    Memcheck:Leak
+    match-leak-kinds: possible
+    ...
+    fun:g_realloc
+    obj:*/lib*/libgobject*
+    fun:g_type_register_static
+    ...
+}