diff --git a/.vscode/launch.json b/.vscode/launch.json
index a6c82d9..2387fc8 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -11,7 +11,7 @@
             "skipFiles": [
                 "<node_internals>/**"
             ],
-            "program": "${workspaceFolder}\\build\\build.js",
+            "program": "${workspaceFolder}/build/build.js",
             "outFiles": [
                 "${workspaceFolder}/**/*.js"
             ]
diff --git a/Syntaxes/Lua.plist b/Syntaxes/Lua.plist
index e519492..1467348 100644
--- a/Syntaxes/Lua.plist
+++ b/Syntaxes/Lua.plist
@@ -451,7 +451,7 @@
           </dict>
           <dict>
             <key>begin</key>
-            <string>(?&lt;=\.cdef)\s*(\[(=*)\[)</string>
+            <string>(?&lt;=\.cdef)\s*(\(?\[(=*)\[)</string>
             <key>beginCaptures</key>
             <dict>
               <key>0</key>
@@ -468,7 +468,7 @@
             <key>contentName</key>
             <string>meta.embedded.lua</string>
             <key>end</key>
-            <string>(\]\2\])[ \t]*</string>
+            <string>(\]\2\]\)?)[ \t]*</string>
             <key>endCaptures</key>
             <dict>
               <key>0</key>
diff --git a/lua.tmLanguage.json b/lua.tmLanguage.json
index 3bbf44b..232c7ab 100644
--- a/lua.tmLanguage.json
+++ b/lua.tmLanguage.json
@@ -292,7 +292,7 @@
 					"name": "string.quoted.double.lua"
 				},
 				{
-					"begin": "(?<=\\.cdef)\\s*(\\[(=*)\\[)",
+					"begin": "(?<=\\.cdef)\\s*(\\(?\\[(=*)\\[)",
 					"beginCaptures": {
 						"0": {
 							"name": "string.quoted.other.multiline.lua"
@@ -302,7 +302,7 @@
 						}
 					},
 					"contentName": "meta.embedded.lua",
-					"end": "(\\]\\2\\])[ \\t]*",
+					"end": "(\\]\\2\\]\\)?)[ \\t]*",
 					"endCaptures": {
 						"0": {
 							"name": "string.quoted.other.multiline.lua"