diff --git a/src/main/scala/main.scala b/src/main/scala/main.scala
index 70ef690..2b98572 100644
--- a/src/main/scala/main.scala
+++ b/src/main/scala/main.scala
@@ -41,7 +41,7 @@ def searchNameByNumber(adressen:List[kontakt], searchedNumber:String):String = {
 def binKoeff(m:Int, n:Int):Int = {
 
   def fac(a: Int): Int = {
-    if (a == 1) return 1
+    if (a == 0) return 1
     else a * fac(a - 1)
   }