diff --git a/Taschenrechner.java b/Taschenrechner.java
index 32ac949..433886b 100644
--- a/Taschenrechner.java
+++ b/Taschenrechner.java
@@ -20,6 +20,10 @@ public class Taschenrechner {
 		
 		int temp = 1;
 		
+		if(b == 0) {
+			return 1;
+		}
+		
 		for(int i = 0; i < b; i++) {
 			temp = temp * a;
 		}