diff --git a/packages/components/CHANGELOG.md b/packages/components/CHANGELOG.md
index 7b0c17a67bc40e..e92926bbbe5cec 100644
--- a/packages/components/CHANGELOG.md
+++ b/packages/components/CHANGELOG.md
@@ -5,7 +5,8 @@
 ### Internal
 
 -   `CustomSelectControl`: switch to ariakit-based implementation ([#63258](https://github.com/WordPress/gutenberg/pull/63258)).
--   `CustomSelectControl`: animate select popover appearance. ([#63343](https://github.com/WordPress/gutenberg/pull/63343))
+-   `CustomSelectControlV2`: animate select popover appearance. ([#63343](https://github.com/WordPress/gutenberg/pull/63343))
+-   `CustomSelectControlV2`: do not flip popover if legacy adapter. ([#63357](https://github.com/WordPress/gutenberg/pull/63357)).
 
 ### Enhancements
 
diff --git a/packages/components/src/custom-select-control-v2/custom-select.tsx b/packages/components/src/custom-select-control-v2/custom-select.tsx
index 42fada7d7554aa..e925038812fa73 100644
--- a/packages/components/src/custom-select-control-v2/custom-select.tsx
+++ b/packages/components/src/custom-select-control-v2/custom-select.tsx
@@ -145,6 +145,8 @@ function _CustomSelect(
 					sameWidth
 					slide={ false }
 					onKeyDown={ onSelectPopoverKeyDown }
+					// Match legacy behavior
+					flip={ ! isLegacy }
 				>
 					<CustomSelectContext.Provider value={ contextValue }>
 						{ children }