diff --git a/src/Standards/Typo3Update/Sniffs/Deprecated/AjaxRegistrationSniff.php b/src/Standards/Typo3Update/Sniffs/Deprecated/AjaxRegistrationSniff.php
index 73a2061..603ea88 100644
--- a/src/Standards/Typo3Update/Sniffs/Deprecated/AjaxRegistrationSniff.php
+++ b/src/Standards/Typo3Update/Sniffs/Deprecated/AjaxRegistrationSniff.php
@@ -81,9 +81,9 @@ class Typo3Update_Sniffs_Deprecated_AjaxRegistrationSniff implements PhpCsSniff
         }
 
         $phpcsFile->addWarning(
-            "Defining AJAX using %s is no longer supported with a single String like %s.\n"
-            . "Since TYPO3 7.6, use PSR-7-based Routing for Backend AJAX Requests.\n"
-            . 'See: %s',
+            'Defining AJAX using %s is no longer supported with a single String like %s.'
+            . ' Since TYPO3 7.6, use PSR-7-based Routing for Backend AJAX Requests.'
+            . ' See: %s',
             $tokenToCheck,
             '',
             [
diff --git a/src/Standards/Typo3Update/Sniffs/Deprecated/GenericFunctionCallSniff.php b/src/Standards/Typo3Update/Sniffs/Deprecated/GenericFunctionCallSniff.php
index d6cd39a..9dac445 100644
--- a/src/Standards/Typo3Update/Sniffs/Deprecated/GenericFunctionCallSniff.php
+++ b/src/Standards/Typo3Update/Sniffs/Deprecated/GenericFunctionCallSniff.php
@@ -101,9 +101,7 @@ class Typo3Update_Sniffs_Deprecated_GenericFunctionCallSniff implements PhpCsSni
         $functionCall = $token['content'];
 
         $phpcsFile->addWarning(
-            "Legacy function calls are not allowed; found %s.\n"
-                . "%s.\n"
-                . "See: %s",
+            'Legacy function calls are not allowed; found %s. %s. See: %s',
             $tokenPosition,
             $functionCall,
             [