diff --git a/src/nilsimsa.cr b/src/nilsimsa.cr
index 37e7c1c..9bd115b 100644
--- a/src/nilsimsa.cr
+++ b/src/nilsimsa.cr
@@ -67,7 +67,7 @@ struct NilsimsaHash
       end
     end
     # hash.reverse! # Technically part of algorithm, but we don't need it for matching
-    hash
+    return hash
   end
 
   private def trans3(a : UInt8, b : UInt8, c : UInt8, n : UInt8) : UInt8