diff --git a/imgui.cpp b/imgui.cpp
index 0783ebe8..866dffa3 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -3497,7 +3497,7 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
         else
         {
             size_auto_fit = ImClamp(window->SizeContents + window_padding, style.WindowMinSize, ImMax(style.WindowMinSize, g.IO.DisplaySize - window_padding));
-            if (size_auto_fit.y + style.ItemSpacing.y < window->SizeContents.y && !(flags & ImGuiWindowFlags_NoScrollbar))
+            if (size_auto_fit.y < window->SizeContents.y && !(flags & ImGuiWindowFlags_NoScrollbar))
                 size_auto_fit.x += style.ScrollbarWidth;
             size_auto_fit.y = ImMax(size_auto_fit.y - style.ItemSpacing.y, 0.0f);
         }