diff --git a/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultModelCache.java b/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultModelCache.java
index 5bf8df2aed20..8c6cc1bb9267 100644
--- a/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultModelCache.java
+++ b/impl/maven-impl/src/main/java/org/apache/maven/impl/model/DefaultModelCache.java
@@ -84,8 +84,7 @@ record RgavCacheKey(
         @Override
         public String toString() {
             StringBuilder sb = new StringBuilder();
-            sb.append("GavCacheKey[");
-            sb.append("gav='");
+            sb.append(getClass().getSimpleName()).append("[").append("gav='");
             if (groupId != null) {
                 sb.append(groupId);
             }
@@ -112,7 +111,7 @@ record SourceCacheKey(Source source, String tag) {
 
         @Override
         public String toString() {
-            return "SourceCacheKey[" + "location=" + source.getLocation() + ", tag=" + tag + ", path="
+            return getClass().getSimpleName() + "[" + "location=" + source.getLocation() + ", tag=" + tag + ", path="
                     + source.getPath() + ']';
         }
     }