diff --git a/packages/components/src/font-size-picker/stories/index.story.tsx b/packages/components/src/font-size-picker/stories/index.story.tsx
index f6502fcfd537c..59af0f5cfe60d 100644
--- a/packages/components/src/font-size-picker/stories/index.story.tsx
+++ b/packages/components/src/font-size-picker/stories/index.story.tsx
@@ -18,6 +18,10 @@ const meta: Meta< typeof FontSizePicker > = {
 	component: FontSizePicker,
 	argTypes: {
 		value: { control: false },
+		units: {
+			control: 'inline-check',
+			options: [ 'px', 'em', 'rem', 'vw', 'vh' ],
+		},
 	},
 	parameters: {
 		actions: { argTypesRegex: '^on.*' },
diff --git a/packages/components/src/unit-control/utils.ts b/packages/components/src/unit-control/utils.ts
index 0a7c1160d0b38..c80b34ef3af7b 100644
--- a/packages/components/src/unit-control/utils.ts
+++ b/packages/components/src/unit-control/utils.ts
@@ -394,7 +394,7 @@ export function filterUnitsWithSettings(
 	// Although the `isArray` check shouldn't be necessary (given the signature of
 	// this typed function), it's better to stay on the side of caution, since
 	// this function may be called from un-typed environments.
-	return Array.isArray( availableUnits ) && Array.isArray( allowedUnitValues )
+	return Array.isArray( availableUnits )
 		? availableUnits.filter( ( unit ) =>
 				allowedUnitValues.includes( unit.value )
 		  )