diff --git a/OGP1718-Worms/src/worms/model/Worm.java b/OGP1718-Worms/src/worms/model/Worm.java
index 26660a2..a92a113 100644
--- a/OGP1718-Worms/src/worms/model/Worm.java
+++ b/OGP1718-Worms/src/worms/model/Worm.java
@@ -431,7 +431,7 @@ public class Worm extends GameObject {
         if (name.length() < 2 || !Character.isUpperCase(name.charAt(0))) {
             return 0;
         }
-        String allowedCharacters = "'\" ";
+        String allowedCharacters = "'\" _";
 
         for (int i = 0; i < name.length(); i++) {
             if (!Character.isLetter(name.charAt(i))) {