diff --git a/glib/glib-api.xml b/glib/glib-api.xml
index 37a97d011..a5810f96b 100644
--- a/glib/glib-api.xml
+++ b/glib/glib-api.xml
@@ -2,6 +2,7 @@
 <api>
   <namespace name="GLib" library="libglib-2.0-0.dll">
     <enum name="ConnectFlags" cname="GConnectFlags" type="flags" />
+    <enum name="IOCondition" cname="GIOCondition" type="enum" />
     <enum name="SeekType" cname="GSeekType" type="enum" />
     <enum name="SpawnError" cname="GSpawnError" type="enum" />
     <enum name="SpawnFlags" cname="GSpawnFlags" type="flags" />