diff --git a/aegisub/src/auto4_lua_progresssink.cpp b/aegisub/src/auto4_lua_progresssink.cpp
index db1f464e7..9610c2621 100644
--- a/aegisub/src/auto4_lua_progresssink.cpp
+++ b/aegisub/src/auto4_lua_progresssink.cpp
@@ -245,7 +245,7 @@ namespace Automation4 {
 			return 1;
 		}
 
-		lua_pushstring(L, diag.GetFilename().utf8_str());
+		lua_pushstring(L, diag.GetPath().utf8_str());
 		return 1;
 	}
 }