diff --git a/hadoop-project-dist/pom.xml b/hadoop-project-dist/pom.xml
index 6e73c0efd3..9da5e53424 100644
--- a/hadoop-project-dist/pom.xml
+++ b/hadoop-project-dist/pom.xml
@@ -102,7 +102,7 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
         <configuration>
-          <maxmemory>512m</maxmemory>
+          <maxmemory>768m</maxmemory>
           <quiet>true</quiet>
           <verbose>false</verbose>
           <source>${maven.compile.source}</source>