diff --git a/packages/block-editor/src/components/spacing-sizes-control/hooks/use-spacing-sizes.js b/packages/block-editor/src/components/spacing-sizes-control/hooks/use-spacing-sizes.js
index 7fc96caa7fd47..4a24482f3b1e4 100644
--- a/packages/block-editor/src/components/spacing-sizes-control/hooks/use-spacing-sizes.js
+++ b/packages/block-editor/src/components/spacing-sizes-control/hooks/use-spacing-sizes.js
@@ -10,7 +10,7 @@ import useSetting from '../../use-setting';
 
 export default function useSpacingSizes() {
 	const spacingSizes = [
-		{ name: 0, slug: '0', side: 0 },
+		{ name: 0, slug: '0', size: 0 },
 		...( useSetting( 'spacing.spacingSizes' ) || [] ),
 	];
 
diff --git a/packages/block-editor/src/components/spacing-sizes-control/utils.js b/packages/block-editor/src/components/spacing-sizes-control/utils.js
index fe8d89509cdbd..340abb0322e9a 100644
--- a/packages/block-editor/src/components/spacing-sizes-control/utils.js
+++ b/packages/block-editor/src/components/spacing-sizes-control/utils.js
@@ -102,7 +102,7 @@ export function getCustomValueFromPreset( value, spacingSizes ) {
  */
 export function getPresetValueFromCustomValue( value, spacingSizes ) {
 	// Return value as-is if it is already a preset;
-	if ( isValueSpacingPreset( value ) ) {
+	if ( isValueSpacingPreset( value ) || value === '0' ) {
 		return value;
 	}