diff --git a/src/scripts/models.py b/src/scripts/models.py
index 3ea32c3c03..5c99c76aa7 100644
--- a/src/scripts/models.py
+++ b/src/scripts/models.py
@@ -92,8 +92,8 @@ class ScriptDB(TypedObject):
     db_desc = models.CharField(max_length=255, blank=True)
     # A reference to the database object affected by this Script, if any.
     db_obj = models.ForeignKey(ObjectDB, null=True, blank=True)
-    # how often to run Script (secs). 0 means there is no timer
-    db_interval = models.IntegerField(default=0)
+    # how often to run Script (secs). -1 means there is no timer
+    db_interval = models.IntegerField(default=-1)
     # start script right away or wait interval seconds first
     db_start_delay = models.BooleanField(default=False)
     # how many times this script is to be repeated, if interval!=0.
diff --git a/src/scripts/scripts.py b/src/scripts/scripts.py
index 5de93a2e55..6e54f34f52 100644
--- a/src/scripts/scripts.py
+++ b/src/scripts/scripts.py
@@ -34,7 +34,7 @@ class ScriptClass(TypeClass):
 
     def _start_task(self):
         "start the task runner."
-        if self.interval:
+        if self.interval > 0:
             #print "Starting task runner"
             start_now = not self.start_delay
             self.ndb.twisted_task = task.LoopingCall(self._step_task)
diff --git a/src/utils/reloads.py b/src/utils/reloads.py
index 72f3be31aa..d7d7e05239 100644
--- a/src/utils/reloads.py
+++ b/src/utils/reloads.py
@@ -39,7 +39,7 @@ def reload_modules():
     # these.
     unsafe_modules = []
     for scriptobj in ScriptDB.objects.get_all_scripts():
-        if scriptobj.interval and scriptobj.typeclass_path:
+        if (scriptobj.interval > -1) and scriptobj.typeclass_path:
             unsafe_modules.append(scriptobj.typeclass_path)            
     unsafe_modules = list(set(unsafe_modules))