diff --git a/gitcommits/src/main/scala/com/gerritforge/analytics/gitcommits/plugin/ProcessGitCommitsCommand.scala b/gitcommits/src/main/scala/com/gerritforge/analytics/gitcommits/plugin/ProcessGitCommitsCommand.scala
index a501d39..28e4010 100644
--- a/gitcommits/src/main/scala/com/gerritforge/analytics/gitcommits/plugin/ProcessGitCommitsCommand.scala
+++ b/gitcommits/src/main/scala/com/gerritforge/analytics/gitcommits/plugin/ProcessGitCommitsCommand.scala
@@ -72,6 +72,13 @@
   )
   var extractBranches: Boolean = false
 
+  @ArgOption(
+    name = "--manifest",
+    aliases = Array("-m"),
+    usage = "repo manifest XML with the list of projects to process"
+  )
+  var manifest: String = null
+
   override def run() {
     implicit val config = GerritEndpointConfig(
       gerritConfig.getListenUrl(),