diff --git a/imgui.cpp b/imgui.cpp
index 2567d604..e92e807b 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -4204,8 +4204,8 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
         // Update ContentsRegionMax. All the variable it depends on are set above in this function.
         window->ContentsRegionRect.Min.x = -window->Scroll.x + window->WindowPadding.x;
         window->ContentsRegionRect.Min.x = -window->Scroll.y + window->WindowPadding.y + window->TitleBarHeight() + window->MenuBarHeight();
-        window->ContentsRegionRect.Max.x = -window->Scroll.x - window->WindowPadding.x + (window->SizeContentsExplicit.x != 0.0f ? window->SizeContentsExplicit.x : ImMax(window->SizeContents.x, window->Size.x - window->ScrollbarSizes.x)); 
-        window->ContentsRegionRect.Max.y = -window->Scroll.y - window->WindowPadding.y + (window->SizeContentsExplicit.y != 0.0f ? window->SizeContentsExplicit.y : ImMax(window->SizeContents.y, window->Size.y - window->ScrollbarSizes.y)); 
+        window->ContentsRegionRect.Max.x = -window->Scroll.x - window->WindowPadding.x + (window->SizeContentsExplicit.x != 0.0f ? window->SizeContentsExplicit.x : (window->Size.x - window->ScrollbarSizes.x)); 
+        window->ContentsRegionRect.Max.y = -window->Scroll.y - window->WindowPadding.y + (window->SizeContentsExplicit.y != 0.0f ? window->SizeContentsExplicit.y : (window->Size.y - window->ScrollbarSizes.y)); 
 
         // Setup drawing context
         window->DC.IndentX = 0.0f + window->WindowPadding.x - window->Scroll.x;