diff --git a/imgui.cpp b/imgui.cpp
index 2aaddb67..5614f1e7 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -5902,7 +5902,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         window->DC.NavLayerCurrentMask = (1 << ImGuiNavLayer_Main);
         window->DC.NavLayerActiveMask = window->DC.NavLayerActiveMaskNext;
         window->DC.NavLayerActiveMaskNext = 0x00;
-        window->DC.NavFocusScopeIdCurrent = parent_window ? parent_window->DC.NavFocusScopeIdCurrent : 0;
+        window->DC.NavFocusScopeIdCurrent = (flags & ImGuiWindowFlags_ChildWindow) ? parent_window->DC.NavFocusScopeIdCurrent : 0;
         window->DC.NavHideHighlightOneFrame = false;
         window->DC.NavHasScroll = (window->ScrollMax.y > 0.0f);