diff --git a/win32ss/gdi/ntgdi/init.c b/win32ss/gdi/ntgdi/init.c
index c6c4d7c24d0..a9fe223f856 100644
--- a/win32ss/gdi/ntgdi/init.c
+++ b/win32ss/gdi/ntgdi/init.c
@@ -76,7 +76,6 @@ GdiThreadDestroy(PETHREAD Thread)
 }
 
 BOOL
-APIENTRY
 InitializeGreCSRSS(VOID)
 {
     /* Initialize Dxgkrnl interfaces and run startup routine */