diff --git a/aegisub/video_provider_avs.cpp b/aegisub/video_provider_avs.cpp
index bf9ff295f..e765c3abe 100644
--- a/aegisub/video_provider_avs.cpp
+++ b/aegisub/video_provider_avs.cpp
@@ -195,8 +195,8 @@ PClip AvisynthVideoProvider::OpenVideo(wxString _filename, bool mpeg2dec3_priori
 			script = env->Invoke("Mpeg2Dec3_Mpeg2Source", videoFilename);
 
             //if avisynth is 2.5.7 beta 2 or newer old mpeg2decs will crash without this
-        	if (env->FunctionExists("SetPlanarLegacyAlignment"))
-        		script = env->Invoke("SetPlanarLegacyAlignment", script);
+//        	if (env->FunctionExists("SetPlanarLegacyAlignment"))
+//        		script = env->Invoke("SetPlanarLegacyAlignment", script);
 		}
 
 		// If that fails, try opening it with DGDecode