diff --git a/src/Standards/Generic/Sniffs/WhiteSpace/HereNowdocIdentifierSpacingSniff.php b/src/Standards/Generic/Sniffs/WhiteSpace/HereNowdocIdentifierSpacingSniff.php
index c2939a71d9..ca595743d4 100644
--- a/src/Standards/Generic/Sniffs/WhiteSpace/HereNowdocIdentifierSpacingSniff.php
+++ b/src/Standards/Generic/Sniffs/WhiteSpace/HereNowdocIdentifierSpacingSniff.php
@@ -54,7 +54,7 @@ public function process(File $phpcsFile, $stackPtr)
 
         $phpcsFile->recordMetric($stackPtr, 'Heredoc/nowdoc identifier', 'space between <<< and ID');
 
-        $error = 'There should be no space between the <<< and the heredoc/nowdoc identifier string';
+        $error = 'There should be no space between the <<< and the heredoc/nowdoc identifier string. Found: %s';
         $data  = [$tokens[$stackPtr]['content']];
 
         $fix = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceFound', $data);