diff --git a/Foundation/include/Poco/RotateStrategy.h b/Foundation/include/Poco/RotateStrategy.h
index 2ef5c1bfa..12a5f3176 100644
--- a/Foundation/include/Poco/RotateStrategy.h
+++ b/Foundation/include/Poco/RotateStrategy.h
@@ -114,7 +114,7 @@ public:
 	{
 	}
 	
-	bool mustRotate(LogFile* pFile)
+	bool mustRotate(LogFile* pFile = 0)
 	{
 		if (DT() >= _threshold)
 		{