diff --git a/src/core/utils.js b/src/core/utils.js
index 97cb77a5231..102749041ff 100644
--- a/src/core/utils.js
+++ b/src/core/utils.js
@@ -433,6 +433,7 @@ export const validateDateTime = (val) => {
 }
 
 export const validateGuid = (val) => {
+    val = val.toString().toLowerCase()
     if (!/^[{(]?[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}[)}]?$/.test(val)) {
         return "Value must be a Guid"
     }
diff --git a/test/core/utils.js b/test/core/utils.js
index 5248af1c22a..cd6fd386f6e 100644
--- a/test/core/utils.js
+++ b/test/core/utils.js
@@ -238,6 +238,7 @@ describe("utils", function() {
     it("doesn't return for valid guid", function() {
       expect(validateGuid("8ce4811e-cec5-4a29-891a-15d1917153c1")).toBeFalsy()
       expect(validateGuid("{8ce4811e-cec5-4a29-891a-15d1917153c1}")).toBeFalsy()
+      expect(validateGuid("8CE4811E-CEC5-4A29-891A-15D1917153C1")).toBeFalsy()
     })
 
     it("returns a message for invalid input'", function() {