diff --git a/src/pretix/control/forms/rrule.py b/src/pretix/control/forms/rrule.py
index 40e9db362..bfa7810e0 100644
--- a/src/pretix/control/forms/rrule.py
+++ b/src/pretix/control/forms/rrule.py
@@ -67,7 +67,8 @@ class RRuleForm(forms.Form):
     )
     count = forms.IntegerField(
         label=_('Number of repetitions'),
-        initial=10
+        initial=10,
+        min_value=1,
     )
     until = forms.DateField(
         widget=forms.DateInput(
diff --git a/src/pretix/static/rrule/rrule.js b/src/pretix/static/rrule/rrule.js
index 70a496883..6419236b6 100644
--- a/src/pretix/static/rrule/rrule.js
+++ b/src/pretix/static/rrule/rrule.js
@@ -1934,7 +1934,7 @@ function buildPoslist(bysetpos, timeset, start, end, ii, dayset) {
 function iter(iterResult, options) {
     var dtstart = options.dtstart, freq = options.freq, interval = options.interval, until = options.until, bysetpos = options.bysetpos;
     var count = options.count;
-    if (count === 0 || interval === 0) {
+    if (count <= 0 || interval <= 0) {
         return emitResult(iterResult);
     }
     var counterDate = datetime_DateTime.fromDate(dtstart);
@@ -3799,4 +3799,4 @@ var isFullyConvertible = totext.isFullyConvertible;
 
 /***/ })
 /******/ ]);
-});
\ No newline at end of file
+});