diff --git a/src/main/java/com/yo1000/edu/spockspring/service/WordChainService.java b/src/main/java/com/yo1000/edu/spockspring/service/WordChainService.java
index f9d0023..882c5aa 100644
--- a/src/main/java/com/yo1000/edu/spockspring/service/WordChainService.java
+++ b/src/main/java/com/yo1000/edu/spockspring/service/WordChainService.java
@@ -40,12 +40,4 @@ public WordRepository getWordRepository() {
     public WordSplitter getWordSplitter() {
         return wordSplitter;
     }
-
-    public static class WordChainException extends RuntimeException {
-        public WordChainException() {}
-
-        public WordChainException(String s) {
-            super(s);
-        }
-    }
 }