Failure should return 1 instead of 0

1 files changed, 1 insertions, 1 deletions

diff --git a/php-malware-finder/generate_whitelist.py b/php-malware-finder/generate_whitelist.py
index 6c2e03e..e54de72 100644
--- a/php-malware-finder/generate_whitelist.py
+++ b/php-malware-finder/generate_whitelist.py
@@ -9,7 +9,7 @@ try:
     import yara
 except ImportError:
     print 'Please install python-yara'
-    sys.exit(0)
+    sys.exit(1)
 
 if len(sys.argv) != 3:
     print 'Usage: %s name_of_the_rule_and_version folder_to_scan' % sys.argv[0]