diff --git a/src/Mod/Spreadsheet/Gui/LineEdit.cpp b/src/Mod/Spreadsheet/Gui/LineEdit.cpp
index f5b5f5b7d6..681be3370c 100644
--- a/src/Mod/Spreadsheet/Gui/LineEdit.cpp
+++ b/src/Mod/Spreadsheet/Gui/LineEdit.cpp
@@ -33,7 +33,7 @@
 using namespace SpreadsheetGui;
 
 LineEdit::LineEdit(QWidget *parent)
-    : Gui::ExpressionLineEdit(parent, false, true)
+    : Gui::ExpressionLineEdit(parent, false, '=', true)
     , lastKeyPressed(0)
 {
     setFocusPolicy(Qt::FocusPolicy::ClickFocus);