diff --git a/src/GraphQL.php b/src/GraphQL.php
index a30d077..de3cb51 100644
--- a/src/GraphQL.php
+++ b/src/GraphQL.php
@@ -149,7 +149,7 @@ public function execute($query, $variables = [], $opts = []) {
 	 * @return array
 	 * @static
 	 */
-	static public function formatGraphQLException($e): array {
+	public static function formatGraphQLException($e): array {
 		$debug = false;
 
 		// if debug mode is activated, we have to include debug message and
diff --git a/src/Support/Transformer/Transformer.php b/src/Support/Transformer/Transformer.php
index e7de2a1..766fdf4 100644
--- a/src/Support/Transformer/Transformer.php
+++ b/src/Support/Transformer/Transformer.php
@@ -120,9 +120,10 @@ public function getArguments(Definition $definition) {
 			if (is_callable($pipe)) {
 				continue;
 			}
-
+			// pipe string definition may contain parameters, that are separated from the pipe class name with semicolon
+			$parsedPipeString = explode(':', $pipe, 2);
 			// a class pipe can handle argumentable interface
-			$pipe = $this->app->make($pipe);
+			$pipe = $this->app->make($parsedPipeString[0]);
 
 			if ($pipe instanceof \StudioNet\GraphQL\Support\Pipe\Argumentable) {
 				$args = array_merge($args, $pipe->getArguments($definition));