diff --git a/src/Composer/Repository/ComposerRepository.php b/src/Composer/Repository/ComposerRepository.php
index f48a68bb2..20399ba54 100644
--- a/src/Composer/Repository/ComposerRepository.php
+++ b/src/Composer/Repository/ComposerRepository.php
@@ -423,7 +423,7 @@ class ComposerRepository extends ArrayRepository implements NotifiableRepository
}
// TODO throw SecurityException and abort once we are sure this can not happen accidentally
- $this->io->write('The contents of '.$filename.' do not match its signature, this may be due to a temporary glitch or a man-in-the-middle attack. Please report this.');
+ $this->io->write('The contents of '.$filename.' do not match its signature, this is most likely due to a temporary glitch but could indicate a man-in-the-middle attack. Try running composer again and if please report it if it persists.');
}
$this->cache->write($cacheKey, $encoded);