diff --git a/syntaxes/chapel.tmLanguage.json b/syntaxes/chapel.tmLanguage.json
index 8076cb8..5844a6d 100644
--- a/syntaxes/chapel.tmLanguage.json
+++ b/syntaxes/chapel.tmLanguage.json
@@ -186,6 +186,36 @@
     },
     "strings": {
       "patterns": [
+        {
+          "begin": "\"\"\"",
+          "beginCaptures": {
+            "0": { "name": "punctuation.definition.string.begin.chapel" }
+          },
+          "end": "\"\"\"",
+          "endCaptures": {
+            "0": { "name": "punctuation.definition.string.end.chapel" }
+          },
+          "name": "string.quoted.double.multi.chapel",
+          "patterns": [
+            { "include": "#string_escapes" },
+            { "include": "#string_format" }
+          ]
+        },
+        {
+          "begin": "'''",
+          "beginCaptures": {
+            "0": { "name": "punctuation.definition.string.begin.chapel" }
+          },
+          "end": "'''",
+          "endCaptures": {
+            "0": { "name": "punctuation.definition.string.end.chapel" }
+          },
+          "name": "string.quoted.single.multi.chapel",
+          "patterns": [
+            { "include": "#string_escapes" },
+            { "include": "#string_format" }
+          ]
+        },
         {
           "begin": "\"",
           "beginCaptures": {