diff --git a/packages/string-templates/manifest.json b/packages/string-templates/manifest.json
index af1f4e3d54..5a96885383 100644
--- a/packages/string-templates/manifest.json
+++ b/packages/string-templates/manifest.json
@@ -1097,8 +1097,17 @@
         "format"
       ],
       "numArgs": 2,
-      "example": "{{date now \"DD-MM-YYYY\"}}",
+      "example": "{{date now \"DD-MM-YYYY\"}} -> 21-01-2021",
       "description": "<p>Format a date using moment.js date formatting.</p>\n"
+    },
+    "duration": {
+      "args": [
+        "time",
+        "durationType"
+      ],
+      "numArgs": 2,
+      "example": "{{duration timeLeft \"seconds\"}} -> a few seconds",
+      "description": "<p>Produce a humanized duration left/until given an amount of time and the type of time measurement.</p>\n"
     }
   }
 }
\ No newline at end of file
diff --git a/packages/string-templates/scripts/gen-collection-info.js b/packages/string-templates/scripts/gen-collection-info.js
index 863322fb29..a33d967a62 100644
--- a/packages/string-templates/scripts/gen-collection-info.js
+++ b/packages/string-templates/scripts/gen-collection-info.js
@@ -26,9 +26,10 @@ const ADDED_HELPERS = {
       args: ["time", "durationType"],
       numArgs: 2,
       example: '{{duration timeLeft "seconds"}} -> a few seconds',
-      description: "Produce a humanized duration left/until given an amount of time and the type of time measurement."
-    }
-  }
+      description:
+        "Produce a humanized duration left/until given an amount of time and the type of time measurement.",
+    },
+  },
 }
 
 function fixSpecialCases(name, obj) {
diff --git a/packages/string-templates/src/helpers/date.js b/packages/string-templates/src/helpers/date.js
index cc254195d9..514efcd19f 100644
--- a/packages/string-templates/src/helpers/date.js
+++ b/packages/string-templates/src/helpers/date.js
@@ -64,12 +64,12 @@ function initialSteps(str, pattern, options) {
     pattern = null
     str = null
   }
-  return {str, pattern, options}
+  return { str, pattern, options }
 }
 
 function setLocale(str, pattern, options) {
   // if options is null then it'll get updated here
-  ({str, pattern, options} = initialSteps(str, pattern, options))
+  ;({ str, pattern, options } = initialSteps(str, pattern, options))
   const defaults = { lang: "en", date: new Date(str) }
   const opts = getContext(this, defaults, options)
 
@@ -78,7 +78,7 @@ function setLocale(str, pattern, options) {
 }
 
 module.exports.date = (str, pattern, options) => {
-  ({str, pattern, options} = initialSteps(str, pattern, options))
+  ;({ str, pattern, options } = initialSteps(str, pattern, options))
 
   // if no args are passed, return a formatted date
   if (str == null && pattern == null) {
@@ -92,7 +92,7 @@ module.exports.date = (str, pattern, options) => {
 }
 
 module.exports.duration = (str, pattern, format) => {
-  ({str, pattern} = initialSteps(str, pattern))
+  ;({ str, pattern } = initialSteps(str, pattern))
 
   setLocale(str, pattern)
 
diff --git a/packages/string-templates/src/helpers/external.js b/packages/string-templates/src/helpers/external.js
index df2880f96c..0fa7f734d0 100644
--- a/packages/string-templates/src/helpers/external.js
+++ b/packages/string-templates/src/helpers/external.js
@@ -19,8 +19,8 @@ const EXTERNAL_FUNCTION_COLLECTIONS = [
 ]
 
 const ADDED_HELPERS = {
-  "date": date,
-  "duration": duration,
+  date: date,
+  duration: duration,
 }
 
 exports.registerAll = handlebars => {