diff --git a/routes/repo/repo.go b/routes/repo/repo.go
index 00dbc2f82..96a8b45d1 100644
--- a/routes/repo/repo.go
+++ b/routes/repo/repo.go
@@ -235,7 +235,13 @@ func Action(c *context.Context) {
 	case "watch":
 		err = models.WatchRepo(c.User.ID, c.Repo.Repository.ID, true)
 	case "unwatch":
-		err = models.WatchRepo(c.User.ID, c.Repo.Repository.ID, false)
+		if userID := c.QueryInt64("user_id"); userID != 0 {
+			if c.User.IsAdmin {
+				err = models.WatchRepo(userID, c.Repo.Repository.ID, false)
+			}
+		} else {
+			err = models.WatchRepo(c.User.ID, c.Repo.Repository.ID, false)
+		}
 	case "star":
 		err = models.StarRepo(c.User.ID, c.Repo.Repository.ID, true)
 	case "unstar":
diff --git a/templates/repo/user_cards.tmpl b/templates/repo/user_cards.tmpl
index a29ea9973..bb6c6348b 100644
--- a/templates/repo/user_cards.tmpl
+++ b/templates/repo/user_cards.tmpl
@@ -19,6 +19,16 @@
 						<span class="octicon octicon-clock"></span> {{$.i18n.Tr "user.join_on"}} {{DateFmtShort .Created}}
 					{{end}}
 				</div>
+
+				{{if $.IsAdmin}}
+					<form class="display inline" action="{{$.RepoLink}}/action/unwatch?redirect_to={{$.Link}}" method="POST">
+						{{$.CSRFTokenHTML}}
+						<input type="hidden" name="user_id" value="{{.ID}}">
+						<div class="ui labeled button" tabindex="0">
+							<button class="ui red small button">{{$.i18n.Tr "repo.unwatch"}}</button>
+						</div>
+					</form>
+				{{end}}
 			</li>
 		{{end}}
 	</ul>