diff --git a/grammar.js b/grammar.js
index 1907a3a3..47ca711e 100644
--- a/grammar.js
+++ b/grammar.js
@@ -518,6 +518,7 @@ module.exports = grammar({
     ),
 
     associated_type: $ => seq(
+      optional($.visibility_modifier),
       'type',
       field('name', $._type_identifier),
       field('type_parameters', optional($.type_parameters)),
diff --git a/test/corpus/declarations.txt b/test/corpus/declarations.txt
index 77195e86..5a3c7530 100644
--- a/test/corpus/declarations.txt
+++ b/test/corpus/declarations.txt
@@ -2091,6 +2091,24 @@ where
                 (type_identifier)))))))
     (block)))
 
+================================================================================
+Extern types
+================================================================================
+
+extern {
+    pub type Opaque;
+}
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (foreign_mod_item
+    (extern_modifier)
+    (declaration_list
+      (associated_type
+        (visibility_modifier)
+        (type_identifier)))))
+
 ================================================================================
 Higher-ranked types
 ================================================================================