Cleanup.
diff --git a/glapi.py b/glapi.py
index c94358c..874c34b 100644
--- a/glapi.py
+++ b/glapi.py
@@ -2529,7 +2529,7 @@
 
 
 def GlFunction(*args, **kwargs):
-    kwargs.setdefault('call', 'GLAPIENTRY')
+    kwargs.setdefault('call', 'APIENTRY')
     return Function(*args, **kwargs)