diff --git a/src/com/company/Main.java b/src/com/company/Main.java
index b747323..8f628a6 100644
--- a/src/com/company/Main.java
+++ b/src/com/company/Main.java
@@ -43,7 +43,7 @@ public class Main {
                         total = Calc.div(num1, num2);
                         System.out.println(total);
                     }
-                    default -> System.out.println("Unexpected value: " + op + " ...restarting program");
+                    default -> System.out.println("Unexpected value: '" + op + "' ...restarting program");
                 }
         }
     }