diff --git a/neinomat-termine b/neinomat-termine
index 7664d77..3a475a9 100755
--- a/neinomat-termine
+++ b/neinomat-termine
@@ -40,7 +40,7 @@ end
 
 termine = termine.sort do |x,y| 
   def datum2isodate(datum)
-    isodate = datum[6..9] + "-" + datum[3..4] + "-" + datum[0..1]
+    return datum[6..9] + "-" + datum[3..4] + "-" + datum[0..1]
   end
   datum2isodate(x["datum"]) <=> datum2isodate(y["datum"])
 end