diff --git a/apps/spreadsheeteditor/mobile/src/less/celleditor.less b/apps/spreadsheeteditor/mobile/src/less/celleditor.less
index a66ba45ff..8078b0d05 100644
--- a/apps/spreadsheeteditor/mobile/src/less/celleditor.less
+++ b/apps/spreadsheeteditor/mobile/src/less/celleditor.less
@@ -61,6 +61,7 @@
     }
 
     #idx-btn-function {
+        height: @cellEditorHeight;
         line-height: @cellEditorHeight;
         padding: 0 10px;
     }