diff --git a/lib/split_interval.js b/lib/split_interval.js
index 7862ae83cd000..d19ce50fac89f 100644
--- a/lib/split_interval.js
+++ b/lib/split_interval.js
@@ -1,11 +1,11 @@
 module.exports = function splitInterval(interval) {
-  if (!interval.match(/[0-9]+[mshdwMy]/g)) {
+  if (!interval.match(/[0-9]+[mshdwMy]+/g)) {
     throw new Error ('Malformed `interval`: ' + interval);
   }
-  var parts = interval.match(/[0-9]+|[mshdwMy]/g);
+  var parts = interval.match(/[0-9]+|[mshdwMy]+/g);
 
   return {
     count: parts[0],
     unit: parts[1]
   };
-};
\ No newline at end of file
+};
diff --git a/package.json b/package.json
index a03865dcf681b..fd4f6246d0684 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "timelion",
-  "version": "5.0.0-0.1.305",
+  "version": "5.0.0-0.1.306",
   "dependencies": {
     "body-parser": "^1.12.0",
     "boom": "^2.8.0",