diff --git a/blocks/store/actions.js b/blocks/store/actions.js
index c743f81d47623a..dafdde6fb4b936 100644
--- a/blocks/store/actions.js
+++ b/blocks/store/actions.js
@@ -18,7 +18,7 @@ export function addBlockTypes( blockTypes ) {
 }
 
 /**
- * Returns an action object used in signalling that block types have been added.
+ * Returns an action object used in signalling that block types have been implemented.
  *
  * @param {Array|Object} implementations Block types implementations.
  *
diff --git a/blocks/store/selectors.js b/blocks/store/selectors.js
index 903476144c38cc..de5b325bb48268 100644
--- a/blocks/store/selectors.js
+++ b/blocks/store/selectors.js
@@ -2,7 +2,7 @@
  * External dependencies
  */
 import createSelector from 'rememo';
-import { mapValues, compact } from 'lodash';
+import { mapValues, compact, get } from 'lodash';
 
 /**
  * Returns all the available block types.
@@ -40,7 +40,7 @@ export const getBlockType = createSelector(
 			...blockTypeDefinition,
 			...blockTypeImplementation,
 			attributes: mapValues( blockTypeDefinition.attributes, ( attribute, key ) => {
-				const implementationAttribute = blockTypeImplementation.attributes ? blockTypeImplementation.attributes[ key ] : {};
+				const implementationAttribute = get( blockTypeImplementation.attributes, [ key ], {} );
 				return {
 					...attribute,
 					...implementationAttribute,