diff --git a/jdk/src/windows/native/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.c b/jdk/src/windows/native/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.c
index 6babafb2041f29a5dcdd7be725b1df61e0cf6f2c..81484da7feef97b69aa7663752768cff47db26a5 100644
--- a/jdk/src/windows/native/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.c
+++ b/jdk/src/windows/native/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.c
@@ -44,7 +44,7 @@
 #define SO_UPDATE_CONNECT_CONTEXT 0x7010
 #endif
 
-typedef BOOL (*ConnectEx_t)
+typedef BOOL (PASCAL *ConnectEx_t)
 (
     SOCKET s,
     const struct sockaddr* name,