diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index 98d887bd49..172a9959d7 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -362,7 +362,7 @@ void GCodeViewer::SequentialView::Marker::render(int canvas_width, int canvas_he
     std::string layer_time = ImGui::ColorMarkerStart + _u8L("Layer Time: ") + ImGui::ColorMarkerEnd;
     std::string fanspeed = ImGui::ColorMarkerStart + _u8L("Fan: ") + ImGui::ColorMarkerEnd;
     std::string temperature = ImGui::ColorMarkerStart + _u8L("Temperature: ") + ImGui::ColorMarkerEnd;
-    const float item_size = imgui.calc_text_size(std::string_view{"X: 000.000  "}).x;
+    const float item_size = imgui.calc_text_size(std::string_view{"X: 000.000       "}).x;
     const float item_spacing = imgui.get_item_spacing().x;
     const float window_padding = ImGui::GetStyle().WindowPadding.x;