diff --git a/src/Authentication/AllowedHostsValidator.php b/src/Authentication/AllowedHostsValidator.php
index 2f081ae..3dbdb61 100644
--- a/src/Authentication/AllowedHostsValidator.php
+++ b/src/Authentication/AllowedHostsValidator.php
@@ -8,6 +8,8 @@
 
 namespace Microsoft\Kiota\Abstractions\Authentication;
 
+use InvalidArgumentException;
+
 /**
  * Class AllowedHostsValidator
  *
@@ -40,6 +42,9 @@ public function setAllowedHosts(array $hosts): void
     {
         foreach ($hosts as $host) {
             $host = strtolower(trim($host));
+            if (str_starts_with($host, "https://") || str_starts_with($host, 'http://')) {
+                throw new InvalidArgumentException("The host $host is not valid as it contains the scheme.");
+            }
             if (!array_key_exists($host, $this->allowedHosts)) {
                 $this->allowedHosts[$host] = true;
             }
@@ -81,4 +86,4 @@ private function extractHost(string $url): string
             throw new \InvalidArgumentException("$url must contain host");
         }
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Authentication/AllowedHostsValidatorTest.php b/tests/Authentication/AllowedHostsValidatorTest.php
index fee9e23..2af7a8c 100644
--- a/tests/Authentication/AllowedHostsValidatorTest.php
+++ b/tests/Authentication/AllowedHostsValidatorTest.php
@@ -31,6 +31,16 @@ public function testSetAllowedHostsSetLowercaseTrimmedDeduplicatedHosts(): void
         $this->assertEquals($expected, $validator->getAllowedHosts());
     }
 
+    public function testShouldThrowException(): void
+    {
+        $hosts = ["https://abc.com "];
+        $this->expectException(\InvalidArgumentException::class);
+        $validator = new AllowedHostsValidator();
+        $validator->setAllowedHosts($hosts);
+        $expected = ["abc.com"]; //duplicates should not be added to allowed hosts
+
+    }
+
     public function testIsUrlHostValidWithValidHost(): void
     {
         $this->assertTrue($this->defaultValidator->isUrlHostValid("https://abc.com"));