diff --git a/test/bytecode/javFiles/Matrix.jav b/test/bytecode/javFiles/Matrix.jav
index 6eae3428..61c60110 100644
--- a/test/bytecode/javFiles/Matrix.jav
+++ b/test/bytecode/javFiles/Matrix.jav
@@ -18,7 +18,7 @@ public class Matrix   extends Vector<Vector<Integer>> {
 	  }
     }
 
-	Matrix mul(java.util.Vector<java.util.Vector<java.lang.Integer>> m) {
+	mul(m) {
         var ret = new Matrix();
         var i = 0;
         while(i < size()) {