diff --git a/microscript/ILibDuktape_net.c b/microscript/ILibDuktape_net.c
index 2b31212..5e73e34 100644
--- a/microscript/ILibDuktape_net.c
+++ b/microscript/ILibDuktape_net.c
@@ -961,14 +961,17 @@ BOOL ILibDuktape_server_ipc_ReadSink(void *chain, HANDLE h, ILibWaitHandle_Error
 		if (winIPC->reservedState != NULL) { ILibChain_WaitHandle_DestroySavedState(chain, winIPC->reservedState); winIPC->reservedState = NULL; }
 		ILibDuktape_DuplexStream_Closed(winIPC->ds);
 
-		duk_push_heapptr(winIPC->ctx, winIPC->mServer);										// [server]
-		if (duk_has_prop_string(winIPC->ctx, -1, ILibDuktape_net_server_closed_needEmit))
+		if (winIPC->mServer != NULL)
 		{
-			ILibDuktape_EventEmitter_SetupEmit(winIPC->ctx, winIPC->mServer, "close");		// [server][emit][this][close]
-			if (duk_pcall_method(winIPC->ctx, 1) != 0) { ILibDuktape_Process_UncaughtExceptionEx(winIPC->ctx, "net.ipcServer.onClose() Error: "); }
-			duk_pop(winIPC->ctx);															// [server]
+			duk_push_heapptr(winIPC->ctx, winIPC->mServer);										// [server]
+			if (duk_has_prop_string(winIPC->ctx, -1, ILibDuktape_net_server_closed_needEmit))
+			{
+				ILibDuktape_EventEmitter_SetupEmit(winIPC->ctx, winIPC->mServer, "close");		// [server][emit][this][close]
+				if (duk_pcall_method(winIPC->ctx, 1) != 0) { ILibDuktape_Process_UncaughtExceptionEx(winIPC->ctx, "net.ipcServer.onClose() Error: "); }
+				duk_pop(winIPC->ctx);															// [server]
+			}
+			duk_pop(winIPC->ctx);																// ...
 		}
-		duk_pop(winIPC->ctx);																// ...
 
 		return(FALSE);
 	}