diff --git a/app/src/mobile/settings/editor.ts b/app/src/mobile/settings/editor.ts
index 4e5d80521..b9dfd0cb3 100644
--- a/app/src/mobile/settings/editor.ts
+++ b/app/src/mobile/settings/editor.ts
@@ -197,13 +197,13 @@ export const initEditor = () => {
 <div class="b3-label fn__displayblock">
     ${window.siyuan.languages.backlinkExpand}
     <span class="fn__hr"></span>
-    <input class="b3-text-field fn__block" id="backlinkExpandCount" type="number" min="0" max="512" value="${window.siyuan.config.editor.backlinkExpandCount}"/>
+    <input class="b3-text-field fn__block" id="backlinkExpandCount" type="number" min="-1" max="512" value="${window.siyuan.config.editor.backlinkExpandCount}"/>
     <div class="b3-label__text">${window.siyuan.languages.backlinkExpandTip}</div>
 </div>
 <div class="b3-label fn__displayblock">
     ${window.siyuan.languages.backmentionExpand}
     <span class="fn__hr"></span>
-    <input class="b3-text-field fn__block" id="backmentionExpandCount" type="number" min="0" max="512" value="${window.siyuan.config.editor.backmentionExpandCount}"/>
+    <input class="b3-text-field fn__block" id="backmentionExpandCount" type="number" min="-1" max="512" value="${window.siyuan.config.editor.backmentionExpandCount}"/>
     <div class="b3-label__text">${window.siyuan.languages.backmentionExpandTip}</div>
 </div>
 <div class="b3-label fn__displayblock">
diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index 5a78f7850..905af6ecc 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -249,11 +249,11 @@ func InitConf() {
 	if conf.MaxDynamicLoadBlocks < Conf.Editor.DynamicLoadBlocks {
 		Conf.Editor.DynamicLoadBlocks = conf.MaxDynamicLoadBlocks
 	}
-	if 0 > Conf.Editor.BacklinkExpandCount {
-		Conf.Editor.BacklinkExpandCount = 0
+	if -1 > Conf.Editor.BacklinkExpandCount {
+		Conf.Editor.BacklinkExpandCount = -1
 	}
-	if 0 > Conf.Editor.BackmentionExpandCount {
-		Conf.Editor.BackmentionExpandCount = 0
+	if -1 > Conf.Editor.BackmentionExpandCount {
+		Conf.Editor.BackmentionExpandCount = -1
 	}
 	if nil == Conf.Editor.Markdown {
 		Conf.Editor.Markdown = &util.Markdown{}