diff --git a/src/js/_enqueues/lib/link.js b/src/js/_enqueues/lib/link.js
index 7c8c4984c5..954d211131 100644
--- a/src/js/_enqueues/lib/link.js
+++ b/src/js/_enqueues/lib/link.js
@@ -507,9 +507,10 @@
 
 		searchInternalLinks: function() {
 			var waiting,
-				search = inputs.search.val() || '';
+				search = inputs.search.val() || '',
+				minInputLength = parseInt( wpLinkL10n.minInputLength, 10 ) || 3;
 
-			if ( search.length > 2 ) {
+			if ( search.length >= minInputLength ) {
 				rivers.recent.hide();
 				rivers.search.show();
 
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index 27e0c8e996..2dd48d5a66 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -1504,6 +1504,8 @@ function wp_default_scripts( &$scripts ) {
 			'noMatchesFound' => __( 'No results found.' ),
 			'linkSelected'   => __( 'Link selected.' ),
 			'linkInserted'   => __( 'Link inserted.' ),
+			/* translators: Minimum input length in characters to start searching posts in the "Insert/edit link" modal. */
+			'minInputLength' => (int) _x( '3', 'minimum input length for searching post links' ),
 		)
 	);