diff --git a/src/utils.ts b/src/utils.ts
index a783d2d0..c1db09f2 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -15,7 +15,7 @@ import tmp from "tmp";
  * @returns {Number}
  */
 export function convertDelayStringToMS(str) {
-  const regex = /^([0-9]+)\s*([dhms])?[a-z]*\s*/;
+  const regex = /^([0-9]+)\s*([wdhms])?[a-z]*\s*/;
   let match;
   let ms = 0;
 
@@ -23,7 +23,8 @@ export function convertDelayStringToMS(str) {
 
   // tslint:disable-next-line
   while (str !== "" && (match = str.match(regex)) !== null) {
-    if (match[2] === "d") ms += match[1] * 1000 * 60 * 60 * 24;
+    if (match[2] === "w") ms += match[1] * 1000 * 60 * 60 * 24 * 7;
+    else if (match[2] === "d") ms += match[1] * 1000 * 60 * 60 * 24;
     else if (match[2] === "h") ms += match[1] * 1000 * 60 * 60;
     else if (match[2] === "s") ms += match[1] * 1000;
     else if (match[2] === "m" || !match[2]) ms += match[1] * 1000 * 60;