diff --git a/lucene/core/src/java/org/apache/lucene/search/FieldCache.java b/lucene/core/src/java/org/apache/lucene/search/FieldCache.java
index da3590c87d2..62edc7fa0e5 100644
--- a/lucene/core/src/java/org/apache/lucene/search/FieldCache.java
+++ b/lucene/core/src/java/org/apache/lucene/search/FieldCache.java
@@ -90,7 +90,7 @@ public interface FieldCache {
     };
   }
 
-  /** Field values as 32-bit signed long integers */
+  /** Field values as 64-bit signed long integers */
   public static abstract class Longs {
     /** Return an long representation of this field's value. */
     public abstract long get(int docID);