diff --git a/imgui_internal.h b/imgui_internal.h
index 575bf9f..ec4f5ca 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -1963,10 +1963,10 @@
     bool                    ActiveIdHasBeenPressedBefore;       // Track whether the active id led to a press (this is to allow changing between PressOnClick and PressOnRelease without pressing twice). Used by range_select branch.
     bool                    ActiveIdHasBeenEditedBefore;        // Was the value associated to the widget Edited over the course of the Active state.
     bool                    ActiveIdHasBeenEditedThisFrame;
+    int                     ActiveIdMouseButton : 8;
     ImVec2                  ActiveIdClickOffset;                // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
     ImGuiWindow*            ActiveIdWindow;
-    ImGuiInputSource        ActiveIdSource : 16;                // Activating source: ImGuiInputSource_Mouse OR ImGuiInputSource_Keyboard OR ImGuiInputSource_Gamepad
-    int                     ActiveIdMouseButton : 16;
+    ImGuiInputSource        ActiveIdSource;                     // Activating source: ImGuiInputSource_Mouse OR ImGuiInputSource_Keyboard OR ImGuiInputSource_Gamepad
     ImGuiID                 ActiveIdPreviousFrame;
     bool                    ActiveIdPreviousFrameIsAlive;
     bool                    ActiveIdPreviousFrameHasBeenEditedBefore;