diff --git a/src/ZugferdDocumentBuilder.php b/src/ZugferdDocumentBuilder.php
index 8c373ea9..2ac1e5e1 100644
--- a/src/ZugferdDocumentBuilder.php
+++ b/src/ZugferdDocumentBuilder.php
@@ -574,8 +574,8 @@ public function addDocumentSellerContact(?string $contactpersonname, ?string $co
     /**
      * Set Sellers electronic communication information
      *
-     * @param string|null $uriScheme
-     * @param string|null $uri
+     * @param  string|null $uriScheme
+     * @param  string|null $uri
      * @return ZugferdDocumentBuilder
      */
     public function setDocumentSellerCommunication(?string $uriScheme, ?string $uri): ZugferdDocumentBuilder
@@ -754,8 +754,8 @@ public function addDocumentBuyerContact(?string $contactpersonname, ?string $con
     /**
      * Set Buyers electronic communication information
      *
-     * @param string|null $uriScheme
-     * @param string|null $uri
+     * @param  string|null $uriScheme
+     * @param  string|null $uri
      * @return ZugferdDocumentBuilder
      */
     public function setDocumentBuyerCommunication(?string $uriScheme, ?string $uri): ZugferdDocumentBuilder
diff --git a/src/ZugferdDocumentPdfBuilderAbstract.php b/src/ZugferdDocumentPdfBuilderAbstract.php
index b6d1b6b3..f177fee9 100644
--- a/src/ZugferdDocumentPdfBuilderAbstract.php
+++ b/src/ZugferdDocumentPdfBuilderAbstract.php
@@ -47,7 +47,7 @@ abstract class ZugferdDocumentPdfBuilderAbstract
     /**
      * Constructor
      *
-     * @param string                 $pdfData
+     * @param string $pdfData
      * The full filename or a string containing the binary pdf data. This
      * is the original PDF (e.g. created by a ERP system)
      */
@@ -261,12 +261,12 @@ protected function extractInvoiceInformations(): array
         $docTypeCode = $docTypeXpath->item(0)->nodeValue;
 
         switch ($docTypeCode) {
-            case ZugferdInvoiceType::CREDITNOTE:
-                $docTypeName = 'Credit Note';
-                break;
-            default:
-                $docTypeName = 'Invoice';
-                break;
+        case ZugferdInvoiceType::CREDITNOTE:
+            $docTypeName = 'Credit Note';
+            break;
+        default:
+            $docTypeName = 'Invoice';
+            break;
         }
 
         $invoiceInformation = array(
diff --git a/src/quick/ZugferdQuickDescriptor.php b/src/quick/ZugferdQuickDescriptor.php
index 3403b333..635b5390 100644
--- a/src/quick/ZugferdQuickDescriptor.php
+++ b/src/quick/ZugferdQuickDescriptor.php
@@ -465,8 +465,8 @@ public function doAddBuyerTaxRegistration(string $no, string $schemeID): Zugferd
     /**
      * Set Buyers electronic communication information
      *
-     * @param string $uri
-     * @param string $uriScheme
+     * @param  string $uri
+     * @param  string $uriScheme
      * @return ZugferdQuickDescriptor
      */
     public function doSetBuyerElectronicCommunication(string $uri, string $uriScheme = "EM"): ZugferdQuickDescriptor
@@ -559,8 +559,8 @@ public function doAddSellerTaxRegistration(string $no, string $schemeID): Zugfer
     /**
      * Set Sellers electronic communication information
      *
-     * @param string $uri
-     * @param string $uriScheme
+     * @param  string $uri
+     * @param  string $uriScheme
      * @return ZugferdQuickDescriptor
      */
     public function doSetSellerElectronicCommunication(string $uri, string $uriScheme = "EM"): ZugferdQuickDescriptor
diff --git a/tests/testcases/issues/Issue18Test.php b/tests/testcases/issues/Issue18Test.php
index c328ce51..fbb64801 100644
--- a/tests/testcases/issues/Issue18Test.php
+++ b/tests/testcases/issues/Issue18Test.php
@@ -26,4 +26,4 @@ public function testBusinessProcessSpecifiedDocumentContextParameter(): void
         $this->assertEquals('urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_3.0', $invoiceObject->getExchangedDocumentContext()->getGuidelineSpecifiedDocumentContextParameter()->getId());
         $this->assertEquals('urn:fdc:peppol.eu:2017:poacc:billing:01:1.0', $invoiceObject->getExchangedDocumentContext()->getBusinessProcessSpecifiedDocumentContextParameter()->getId());
     }
-}
\ No newline at end of file
+}