diff --git a/src/os2/startup.cpp b/src/os2/startup.cpp
index dd72dcf..f5d8f13 100644
--- a/src/os2/startup.cpp
+++ b/src/os2/startup.cpp
@@ -33,7 +33,7 @@ extern "C"
 		sta::startupExtras(arg);
 
 
-#ifdef STA_WATCHDOG_ENABLE
+#ifdef STA_OS2_WATCHDOG_ENABLE
 		// Start timers
 		sta::startWatchdogTimer();
 #endif