diff --git a/Docs/Luadoc/LuaDocumentation.xml b/Docs/Luadoc/LuaDocumentation.xml
index 096eb45728..01ed459050 100644
--- a/Docs/Luadoc/LuaDocumentation.xml
+++ b/Docs/Luadoc/LuaDocumentation.xml
@@ -1846,7 +1846,7 @@
 	<Function name='PlayAnnouncer' return='void' arguments='string sPath'>
 		Plays a sound from the current announcer.
 	</Function>
-	<Function name='PlayMusicPart' return='void' arguments='string musicPath, float musicStart, float musicLength, float fadeIn = 0, float fadeOut = 0'>
+	<Function name='PlayMusicPart' return='void' arguments='string musicPath, float musicStart, float musicLength, float fadeIn, float fadeOut'>
 		Play the sound at <code>musicPath</code> starting from <code>musicStart</code> for
 		<code>musicLength</code> seconds one time. Both <code>fadeIn</code> and
 		<code>fadeOut</code> can be customized as required.