diff --git a/libsrc/ffdec_lib/testdata/as3/as3.swf b/libsrc/ffdec_lib/testdata/as3/as3.swf
index 57e2ecc4d..f61c87a64 100644
Binary files a/libsrc/ffdec_lib/testdata/as3/as3.swf and b/libsrc/ffdec_lib/testdata/as3/as3.swf differ
diff --git a/libsrc/ffdec_lib/testdata/as3/classes/Test.as b/libsrc/ffdec_lib/testdata/as3/classes/Test.as
index c63dc726a..8d863da9b 100644
--- a/libsrc/ffdec_lib/testdata/as3/classes/Test.as
+++ b/libsrc/ffdec_lib/testdata/as3/classes/Test.as
@@ -973,5 +973,10 @@ import classes.TestNs;
 			}
 			trace("after switch");
 		}
+		
+		public function testManualConvert(){
+			trace("String(this).length");
+			trace(String(this).length);
+		}
 	}
 }
\ No newline at end of file