diff --git a/molecule.py b/molecule.py
index 78b47da..f370b7b 100644
--- a/molecule.py
+++ b/molecule.py
@@ -25,11 +25,6 @@ sys.path.insert(0,'molecule/')
 sys.path.insert(0,'.')
 import molecule.cmdline
 from molecule.handlers import Runner
-from molecule.utils import RUNNING_PIDS
-
-def kill_pids():
-    for pid in RUNNING_PIDS:
-        os.kill(pid, signal.SIGTERM)
 
 parse_data = molecule.cmdline.parse()
 if parse_data is None:
@@ -46,12 +41,10 @@ for el in molecule_data_order:
     except KeyboardInterrupt:
         while True:
             my.kill()
-            kill_pids()
             break
         raise SystemExit(1)
     while True:
         my.kill()
-        kill_pids()
         break
     if rc != 0:
         raise SystemExit(rc)
diff --git a/molecule/utils.py b/molecule/utils.py
index cbb98c1..9b413eb 100644
--- a/molecule/utils.py
+++ b/molecule/utils.py
@@ -31,8 +31,6 @@ random.seed()
 
 from molecule.compat import convert_to_rawstring
 
-RUNNING_PIDS = set()
-
 
 def get_year():
     """
@@ -153,9 +151,7 @@ def exec_chroot_cmd(args, chroot, pre_chroot = None, env = None):
         myargs = pre_chroot+args
         os.execvp(myargs[0], myargs)
     else:
-        RUNNING_PIDS.add(pid)
         rcpid, rc = os.waitpid(pid, 0)
-        RUNNING_PIDS.discard(pid)
         return rc
 
 def kill_chroot_pids(chroot, sig = signal.SIGTERM, sleep = False):