diff --git a/test/compiler/prepare_grammar/parse_regex_test.cc b/test/compiler/prepare_grammar/parse_regex_test.cc
index a252654b..ef4f4857 100644
--- a/test/compiler/prepare_grammar/parse_regex_test.cc
+++ b/test/compiler/prepare_grammar/parse_regex_test.cc
@@ -150,6 +150,27 @@ describe("parse_regex", []() {
       })
     },
 
+    {
+      "escaped brackets",
+      "\\[\\]",
+      Rule::seq({
+        CharacterSet{{'['}},
+        CharacterSet{{']'}},
+      })
+    },
+
+    {
+      "escaped brackets in choice",
+      "[\\[\\]]",
+      CharacterSet{{'[', ']'}}
+    },
+
+    {
+      "escaped brackets in range",
+      "[\\[-\\]]",
+      CharacterSet{{'[', '\\', ']'}}
+    },
+
     {
       "escaped periods",
       "a\\.",