diff --git a/utilities.py b/utilities.py
index b0a9266..0c7353d 100644
--- a/utilities.py
+++ b/utilities.py
@@ -80,7 +80,7 @@ def print_signals_1(sig):
     print_signal("Branch", sig.Branch, 1);
     print_signal("MemRead", sig.MemRead, 1);
     print_signal("MemtoReg", sig.MemtoReg, 1);
-    print_signal("ALUOp", sig.ALUOp, 1);
+    print_signal("ALUOp", sig.ALUOp, 2);
     print_signal("MemWrite", sig.MemWrite, 1);
     print_signal("ALUSrc", sig.ALUSrc, 1);
     print_signal("RegWrite", sig.RegWrite, 1);