diff --git a/src/Reporter.php b/src/Reporter.php
index 824031a485..78970bc59f 100644
--- a/src/Reporter.php
+++ b/src/Reporter.php
@@ -290,6 +290,10 @@ public function cacheFileReport(File $phpcsFile)
             $generatedReport = ob_get_contents();
             ob_end_clean();
 
+            if ($this->config->colors !== true) {
+                $generatedReport = Common::stripColors($generatedReport);
+            }
+
             if ($report['output'] === null) {
                 // Using a temp file.
                 if (isset($this->tmpFiles[$type]) === false) {