diff --git a/arcanist/linter/PrettierLinter.php b/arcanist/linter/PrettierLinter.php
index 5d106df8a..46251b462 100644
--- a/arcanist/linter/PrettierLinter.php
+++ b/arcanist/linter/PrettierLinter.php
@@ -1,71 +1,85 @@
 <?php
 
 /**
  * Run the prettier linter: https://prettier.io.
  */
 final class PrettierLinter extends ArcanistExternalLinter {
 
   public function getInfoName() {
     return 'prettier';
   }
 
   public function getInfoURI() {
     return 'https://prettier.io';
   }
 
   public function getInfoDescription() {
     return pht('Use prettier for processing specified files.');
   }
 
   public function getInstallInstructions() {
     return pht('Install `prettier` using `npm` with `npm install prettier`');
   }
 
   public function getLinterName() {
     return 'prettier';
   }
 
   public function getLinterConfigurationName() {
     return 'prettier';
   }
 
   public function getDefaultBinary() {
     return 'prettier';
   }
 
   public function getVersion() {
     list($stdout) = execx('%C --version', $this->getExecutableCommand());
 
     $matches = array();
     $regex = '/^(?P<version>\d+\.\d+\.\d+)$/';
     if (preg_match($regex, $stdout, $matches)) {
       return $matches['version'];
     }
 
     return false;
   }
 
   protected function parseLinterOutput($path, $err, $stdout, $stderr) {
     $root = $this->getProjectRoot();
     $path = Filesystem::resolvePath($path, $root);
 
+    if ($err != 0) {
+      $message = id(new ArcanistLintMessage())
+      ->setPath($path)
+      ->setLine(1)
+      ->setChar(1)
+      ->setGranularity(ArcanistLinter::GRANULARITY_FILE)
+      ->setCode('PRETTIER')
+      ->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
+      ->setName('Linter error')
+      ->setDescription($stderr);
+
+      return array($message);
+    }
+
     $orig = file_get_contents($path);
     if ($orig == $stdout) {
       return array();
     }
 
     $message = id(new ArcanistLintMessage())
     ->setPath($path)
     ->setLine(1)
     ->setChar(1)
     ->setGranularity(ArcanistLinter::GRANULARITY_FILE)
     ->setCode('PRETTIER')
     ->setSeverity(ArcanistLintSeverity::SEVERITY_AUTOFIX)
     ->setName('Code style violation')
     ->setDescription("'$path' has code style errors.")
     ->setOriginalText($orig)
     ->setReplacementText($stdout);
 
     return array($message);
   }
 }