diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index 7a38af8b..9ba63056 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -982,7 +982,10 @@ void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float roun
 {
     if ((col & IM_COL32_A_MASK) == 0)
         return;
-    PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.5f,0.5f), rounding, rounding_corners_flags);
+    if (Flags & ImDrawListFlags_AntiAliasedLines)
+        PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags);
+    else
+        PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.49f,0.49f), rounding, rounding_corners_flags); // Better looking lower-right corner and rounded non-AA shapes.
     PathStroke(col, true, thickness);
 }