diff --git a/cocluto/Util.py b/cocluto/Util.py
index 7831eae..037872f 100644
--- a/cocluto/Util.py
+++ b/cocluto/Util.py
@@ -46,7 +46,7 @@ def log(message):
 
 def executeProgram(astrArguments):
     # log('executeProgram : program [%s]' % (','.join(astrArguments)))
-    popen = subprocess.Popen( astrArguments, bufsize=1, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)  # bufsize=1 seems to prevent deadlocks that happen 50% the time
+    popen = subprocess.Popen( astrArguments, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)  # bufsize=1 seems to prevent deadlocks that happen 50% the time
     stdout, stderr = popen.communicate()
     # popen.wait()
     result = (popen.returncode, stdout.decode(), stderr)
@@ -59,7 +59,7 @@ def executeCommand(command):
     """
         executes the shell command such as 'set x=1; myprog $x'
     """
-    popen = subprocess.Popen( [command], bufsize=1, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, executable='/bin/bash')  # bufsize=1 seems to prevent deadlocks that happen 50% the time
+    popen = subprocess.Popen( [command], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, executable='/bin/bash')  # bufsize=1 seems to prevent deadlocks that happen 50% the time
     # if we don't specify the optional executable argument, then the default non interactive shell will be used. On debian, the default non-interactive shell is dash, which doesn't understand the keyword 'source' that we use in many places
     stdout, stderr = popen.communicate()
     # popen.wait()