diff --git a/meas_data.py b/meas_data.py
index 1ec50f5..8717162 100644
--- a/meas_data.py
+++ b/meas_data.py
@@ -12,7 +12,7 @@ gpg=gnupg.GPG()
 _STRINGREMOVE=str.maketrans(dict.fromkeys("/:;\\{}(){]%&"))
 
 class meas_data:
-	def __init__(self,var_name,ring_length=100,sigma=2,device=socket.gethostname(),sensor="CPU",i2c=0,store_file="/home/pi/data",multiplicator=1,digits=5,check_last=0,mac=0,sql_min_wait=5,rsa_key="",check_last_shrinking=0.99,mean_count=5,ring_length=60):
+	def __init__(self,var_name,ring_length=100,sigma=2,device=socket.gethostname(),sensor="CPU",i2c=0,store_file="/home/pi/data",multiplicator=1,digits=5,check_last=0,mac=0,sql_min_wait=5,rsa_key="",check_last_shrinking=0.99,mean_count=5):
 		self.set_varname(var_name)
 		self.value=[]
 		self.mval=[]