diff --git a/Kitodo-API/src/main/java/org/kitodo/utils/JAXBContextCache.java b/Kitodo-API/src/main/java/org/kitodo/utils/JAXBContextCache.java
index 21a7989a36e..3a959586315 100644
--- a/Kitodo-API/src/main/java/org/kitodo/utils/JAXBContextCache.java
+++ b/Kitodo-API/src/main/java/org/kitodo/utils/JAXBContextCache.java
@@ -128,6 +128,7 @@ public boolean equals(Object potentialContextDescriptor) {
             return false;
         }
 
+        @Override
         public int hashCode() {
             return (clazz + fileName).hashCode();
         }