diff --git a/lib/classes/Variables.test.js b/lib/classes/Variables.test.js
index b60c9c59e..2d3e5572b 100644
--- a/lib/classes/Variables.test.js
+++ b/lib/classes/Variables.test.js
@@ -165,6 +165,17 @@ describe('Variables', () => {
       expect(newProperty).to.equal('your account number is 5');
     });
 
+    it('should populate non string variables', () => {
+      const serverless = new Serverless();
+      const valueToPopulate = 5;
+      const matchedString = '${opt:number}';
+      const property = '${opt:number}';
+
+      const newProperty = serverless.variables
+        .populateVariable(property, matchedString, valueToPopulate);
+      expect(newProperty).to.equal('5');
+    });
+
     it('should throw error if populating non string or non number variable as sub string', () => {
       const serverless = new Serverless();
       const valueToPopulate = {};