diff --git a/addon-test-support/@ember/test-helpers/dom/trigger-key-event.js b/addon-test-support/@ember/test-helpers/dom/trigger-key-event.js
index d723606e8..95b50cc10 100644
--- a/addon-test-support/@ember/test-helpers/dom/trigger-key-event.js
+++ b/addon-test-support/@ember/test-helpers/dom/trigger-key-event.js
@@ -27,6 +27,16 @@ const keyFromKeyCode = {
   38: 'ArrowUp',
   39: 'ArrowRight',
   40: 'ArrowDown',
+  48: '0',
+  49: '1',
+  50: '2',
+  51: '3',
+  52: '4',
+  53: '5',
+  54: '6',
+  55: '7',
+  56: '8',
+  57: '9',
   65: 'a',
   66: 'b',
   67: 'c',
@@ -145,7 +155,7 @@ export default function triggerKeyEvent(target, eventType, key, modifiers = DEFA
         );
       }
 
-      if (isNumeric(key)) {
+      if (isNumeric(key) && key.length > 1) {
         throw new Error(
           `Must provide a numeric \`keyCode\` to \`triggerKeyEvent\` but you passed \`${key}\` as a string.`
         );
diff --git a/tests/unit/dom/trigger-key-event-test.js b/tests/unit/dom/trigger-key-event-test.js
index 6aa8362cf..5a24bd77e 100644
--- a/tests/unit/dom/trigger-key-event-test.js
+++ b/tests/unit/dom/trigger-key-event-test.js
@@ -181,6 +181,8 @@ module('DOM Helper: triggerKeyEvent', function(hooks) {
     await checkKey(38, 'ArrowUp');
     await checkKey(39, 'ArrowRight');
     await checkKey(40, 'ArrowDown');
+    await checkKey(48, '0');
+    await checkKey(57, '9');
     await checkKey(91, 'Meta');
     await checkKey(93, 'Meta');
     await checkKey(187, '=');
@@ -218,6 +220,8 @@ module('DOM Helper: triggerKeyEvent', function(hooks) {
     await checkKeyCode('Meta', 91);
     await checkKeyCode('=', 187);
     await checkKeyCode('-', 189);
+    await checkKeyCode('0', 48);
+    await checkKeyCode('9', 57);
     await checkKeyCode('A', 65);
     await checkKeyCode('Z', 90);
   });