diff --git a/clientBlaster.py b/clientBlaster.py
index 717d31f..c667cf7 100644
--- a/clientBlaster.py
+++ b/clientBlaster.py
@@ -44,6 +44,8 @@ heartbeatTime = 600
 threadCount = 0
 threadCountLock = threading.Lock()
 
+fileLock = threading.Lock()
+
 commands = {}
 
 def commandlineToList(cmd):