diff --git a/org.eclipse.jgit/.settings/.api_filters b/org.eclipse.jgit/.settings/.api_filters
index 2d34f57..7c175e3 100644
--- a/org.eclipse.jgit/.settings/.api_filters
+++ b/org.eclipse.jgit/.settings/.api_filters
@@ -23,6 +23,15 @@
             </message_arguments>
         </filter>
     </resource>
+    <resource path="src/org/eclipse/jgit/lib/Constants.java" type="org.eclipse.jgit.lib.Constants">
+        <filter comment="LOCK_SUFFIX was backported to 4.7.3" id="1141899266">
+            <message_arguments>
+                <message_argument value="4.7"/>
+                <message_argument value="4.8"/>
+                <message_argument value="LOCK_SUFFIX"/>
+            </message_arguments>
+        </filter>
+    </resource>
     <resource path="src/org/eclipse/jgit/util/FS.java" type="org.eclipse.jgit.util.FS">
         <filter id="1141899266">
             <message_arguments>
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
index 943cb9c..bda1a27 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
@@ -668,7 +668,7 @@
 	/**
 	 * Suffix of lock file name
 	 *
-	 * @since 4.8
+	 * @since 4.7
 	 */
 	public static final String LOCK_SUFFIX = ".lock"; //$NON-NLS-1$