diff --git a/src/document/katedocument.cpp b/src/document/katedocument.cpp
--- a/src/document/katedocument.cpp
+++ b/src/document/katedocument.cpp
@@ -3583,7 +3583,7 @@
             // Insert only enough spaces to align to the next indentWidth column
             // This fixes bug #340212
             int spacesToInsert = indentWidth - (column % indentWidth);
-            result += QStringLiteral(" ").repeated(spacesToInsert);
+            result += QString(spacesToInsert, QLatin1Char(' '));
             column += spacesToInsert;
         } else {
             // Just keep all other typed characters as-is