diff --git a/packages/block-editor/src/store/private-selectors.js b/packages/block-editor/src/store/private-selectors.js
index f1b5abd7789a11..5a5ce7a801594b 100644
--- a/packages/block-editor/src/store/private-selectors.js
+++ b/packages/block-editor/src/store/private-selectors.js
@@ -330,7 +330,7 @@ function mapUserPattern(
 		id: userPattern.id,
 		type: INSERTER_PATTERN_TYPES.user,
 		title: userPattern.title.raw,
-		categories: userPattern.wp_pattern_category.map( ( catId ) => {
+		categories: userPattern.wp_pattern_category?.map( ( catId ) => {
 			const category = __experimentalUserPatternCategories.find(
 				( { id } ) => id === catId
 			);
diff --git a/packages/edit-site/src/components/page-patterns/use-patterns.js b/packages/edit-site/src/components/page-patterns/use-patterns.js
index f32e278e6354f5..e226298857c4da 100644
--- a/packages/edit-site/src/components/page-patterns/use-patterns.js
+++ b/packages/edit-site/src/components/page-patterns/use-patterns.js
@@ -156,7 +156,7 @@ const selectPatterns = createSelector(
 				categoryId,
 				hasCategory: ( item, currentCategory ) => {
 					if ( item.type === PATTERN_TYPES.user ) {
-						return item.wp_pattern_category.some(
+						return item.wp_pattern_category?.some(
 							( catId ) =>
 								userPatternCategories.find(
 									( cat ) => cat.id === catId
@@ -173,7 +173,7 @@ const selectPatterns = createSelector(
 						return (
 							userPatternCategories?.length &&
 							( ! item.wp_pattern_category?.length ||
-								! item.wp_pattern_category.some( ( catId ) =>
+								! item.wp_pattern_category?.some( ( catId ) =>
 									userPatternCategories.find(
 										( cat ) => cat.id === catId
 									)
diff --git a/packages/edit-site/src/components/sidebar-navigation-screen-patterns/use-pattern-categories.js b/packages/edit-site/src/components/sidebar-navigation-screen-patterns/use-pattern-categories.js
index a41e0ea7660616..70aaf12dc68c77 100644
--- a/packages/edit-site/src/components/sidebar-navigation-screen-patterns/use-pattern-categories.js
+++ b/packages/edit-site/src/components/sidebar-navigation-screen-patterns/use-pattern-categories.js
@@ -69,7 +69,7 @@ export default function usePatternCategories() {
 			// If the pattern has no categories, add it to uncategorized.
 			if (
 				! pattern.wp_pattern_category?.length ||
-				! pattern.wp_pattern_category.some( ( catId ) =>
+				! pattern.wp_pattern_category?.some( ( catId ) =>
 					userPatternCategories.find( ( cat ) => cat.id === catId )
 				)
 			) {
diff --git a/packages/patterns/src/components/duplicate-pattern-modal.js b/packages/patterns/src/components/duplicate-pattern-modal.js
index 70fb0830e0f1cc..d4fd5e744c4e18 100644
--- a/packages/patterns/src/components/duplicate-pattern-modal.js
+++ b/packages/patterns/src/components/duplicate-pattern-modal.js
@@ -24,7 +24,7 @@ function getTermLabels( pattern, categories ) {
 
 	return categories.user
 		?.filter( ( category ) =>
-			pattern.wp_pattern_category.includes( category.id )
+			pattern.wp_pattern_category?.includes( category.id )
 		)
 		.map( ( category ) => category.label );
 }