diff --git a/pyvmx-cracker.py b/pyvmx-cracker.py
index 20398db..fc7e602 100644
--- a/pyvmx-cracker.py
+++ b/pyvmx-cracker.py
@@ -105,7 +105,7 @@ def check_files(vmx, dict):
     except (OSError, IOError):
         sys.exit('[-] Cannot read from file ' + vmx)
 
-    if 'encryption.keySafe' not in lines[2]:
+    if all('encryption.keySafe' not in line for line in lines):
         sys.exit('[-] Invalid VMX file or the VMX is not encrypted')
 
     try: