diff --git a/includes/Classifai/Providers/Azure/ComputerVision.php b/includes/Classifai/Providers/Azure/ComputerVision.php
index 85c2ef12f..fef836a09 100644
--- a/includes/Classifai/Providers/Azure/ComputerVision.php
+++ b/includes/Classifai/Providers/Azure/ComputerVision.php
@@ -749,7 +749,7 @@ protected function prep_api_url( ?\Classifai\Features\Feature $feature = null ):
 	protected function authenticate_credentials( string $url, string $api_key ) {
 		$rtn     = false;
 		$request = wp_remote_post(
-			trailingslashit( $url ) . $this->analyze_url . '&features=caption',
+			add_query_arg( 'features', 'caption', trailingslashit( $url ) . $this->analyze_url ),
 			[
 				'headers' => [
 					'Ocp-Apim-Subscription-Key' => $api_key,