diff --git a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/ChangeEvent.java b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/ChangeEvent.java
index cad7d49be3..92b04c1f68 100644
--- a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/ChangeEvent.java
+++ b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/ChangeEvent.java
@@ -16,7 +16,7 @@ package com.google.gerrit.extensions.events;
 
 import com.google.gerrit.extensions.common.ChangeInfo;
 
-/** Interface to be extendend by Events with a Change. */
+/** Interface to be extended by Events with a Change. */
 public interface ChangeEvent {
   ChangeInfo getChange();
 }
diff --git a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/RevisionEvent.java b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/RevisionEvent.java
index 2917a4578c..27d1067b4e 100644
--- a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/RevisionEvent.java
+++ b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/events/RevisionEvent.java
@@ -16,7 +16,7 @@ package com.google.gerrit.extensions.events;
 
 import com.google.gerrit.extensions.common.RevisionInfo;
 
-/** Interface to be extendend by Events with a Revision. */
+/** Interface to be extended by Events with a Revision. */
 public interface RevisionEvent extends ChangeEvent {
   RevisionInfo getRevision();
 }