diff --git a/templates/repo/diff/compare.tmpl b/templates/repo/diff/compare.tmpl
index 9ed4b73174d..a7b7f38e342 100644
--- a/templates/repo/diff/compare.tmpl
+++ b/templates/repo/diff/compare.tmpl
@@ -211,7 +211,7 @@
 				</div>
 			{{end}}
 		{{else}}{{/* not singed-in or not for pull-request */}}
-			{{if not .CommitCount}}
+			{{if and (not .CommitCount) $.CompareInfo.MergeBase}}
 				<div class="ui segment">{{ctx.Locale.Tr "repo.commits.nothing_to_compare"}}</div>
 			{{end}}
 		{{end}}