diff --git a/backport-changelog/6.7/7179.md b/backport-changelog/6.7/7179.md
index a6e9cc4efe2cd0..d777eace2cb05e 100644
--- a/backport-changelog/6.7/7179.md
+++ b/backport-changelog/6.7/7179.md
@@ -2,3 +2,4 @@ https://github.com/WordPress/wordpress-develop/pull/7179
 
 * https://github.com/WordPress/gutenberg/pull/64401
 * https://github.com/WordPress/gutenberg/pull/64459
+* https://github.com/WordPress/gutenberg/pull/64477
diff --git a/lib/compat/wordpress-6.7/rest-api.php b/lib/compat/wordpress-6.7/rest-api.php
index 2520a06fbb18be..081c22c8102914 100644
--- a/lib/compat/wordpress-6.7/rest-api.php
+++ b/lib/compat/wordpress-6.7/rest-api.php
@@ -39,7 +39,7 @@ function gutenberg_block_editor_preload_paths_6_7( $paths, $context ) {
 			true
 		);
 
-		if ( false !== $parts_key ) {
+		if ( false !== $reusable_blocks_key ) {
 			unset( $paths[ $reusable_blocks_key ] );
 		}
 	}