diff --git a/hbase-common/src/main/java/org/apache/hadoop/hbase/io/compress/DictionaryCache.java b/hbase-common/src/main/java/org/apache/hadoop/hbase/io/compress/DictionaryCache.java
index 3d3fb2a7213..f9508bf481e 100644
--- a/hbase-common/src/main/java/org/apache/hadoop/hbase/io/compress/DictionaryCache.java
+++ b/hbase-common/src/main/java/org/apache/hadoop/hbase/io/compress/DictionaryCache.java
@@ -46,7 +46,7 @@ public final class DictionaryCache {
   public static final String RESOURCE_SCHEME = "resource://";
 
   private static final Logger LOG = LoggerFactory.getLogger(DictionaryCache.class);
-  private static LoadingCache<String, byte[]> CACHE;
+  private static volatile LoadingCache<String, byte[]> CACHE;
 
   private DictionaryCache() { }