diff --git a/glib.supp b/glib.supp
index 7354aeab5..4056502ac 100644
--- a/glib.supp
+++ b/glib.supp
@@ -200,6 +200,16 @@
 	fun:type_iface_vtable_base_init_Wm
 }
 
+{
+	g-type-class-init-calloc
+	Memcheck:Leak
+	fun:calloc
+	...
+	fun:g_type_create_instance
+	...
+	fun:type_class_init_Wm
+}
+
 {
 	g-type-class-init
 	Memcheck:Leak
@@ -218,6 +228,26 @@
 	fun:_g_io_module_get_default
 }
 
+{
+	g-io-module-default-singleton-calloc
+	Memcheck:Leak
+	fun:calloc
+	...
+	fun:g_type_create_instance
+	...
+	fun:_g_io_module_get_default
+}
+
+# This one seems to show up sometimes with g_type_create_instance() at the top
+# of the stack, as well.
+{
+	g-io-module-default-singleton
+	Memcheck:Leak
+	fun:g_type_create_instance
+	...
+	fun:_g_io_module_get_default
+}
+
 {
 	g-io-module-default-singleton-module
 	Memcheck:Leak