diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 84edfa4595..80594adebe 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -5450,7 +5450,11 @@ class SchedulePreviewSerializer(BaseSerializer):
         for a_rule in match_multiple_rrule:
             if 'interval' not in a_rule.lower():
                 errors.append("{0}: {1}".format(_('INTERVAL required in rrule'), a_rule))
-            elif 'secondly' in a_rule.lower():
+            else:
+                match_interval = re.match(r".*?INTERVAL=([0-9]+)", a_rule)
+                if match_interval and int(match_interval.group(1)) < 1:
+                    errors.append("{0}: {1}".format(_("INTERVAL must be a positive integer"), a_rule))
+            if 'secondly' in a_rule.lower():
                 errors.append("{0}: {1}".format(_('SECONDLY is not supported'), a_rule))
             if re.match(by_day_with_numeric_prefix, a_rule):
                 errors.append("{0}: {1}".format(_("BYDAY with numeric prefix not supported"), a_rule))
diff --git a/awx/main/tests/functional/api/test_schedules.py b/awx/main/tests/functional/api/test_schedules.py
index cb49a53d22..516edb341a 100644
--- a/awx/main/tests/functional/api/test_schedules.py
+++ b/awx/main/tests/functional/api/test_schedules.py
@@ -139,6 +139,7 @@ def test_survey_password_default(post, patch, admin_user, project, inventory, su
         ("DTSTART:20300308T050000Z", "One or more rule required in rrule"),
         ("DTSTART:20300308T050000Z RRULE:FREQ=MONTHLY;INTERVAL=1; EXDATE:20220401", "EXDATE not allowed in rrule"),
         ("DTSTART:20300308T050000Z RRULE:FREQ=MONTHLY;INTERVAL=1; RDATE:20220401", "RDATE not allowed in rrule"),
+        ("DTSTART:20300308T050000Z RRULE:FREQ=YEARLY;INTERVAL=0;BYDAY=MO", "INTERVAL must be a positive integer"),
         ("DTSTART:20300308T050000Z RRULE:FREQ=SECONDLY;INTERVAL=5;COUNT=6", "SECONDLY is not supported"),
         # Individual rule test
         ("DTSTART:20300308T050000Z RRULE:NONSENSE", "INTERVAL required in rrule"),
@@ -202,6 +203,7 @@ def test_multiple_invalid_rrules(post, admin_user, project, inventory):
         "rrule": [
             "Multiple DTSTART is not supported.",
             "INTERVAL required in rrule: RULE:FREQ=SECONDLY",
+            "SECONDLY is not supported: RULE:FREQ=SECONDLY",
             "RRULE may not contain both COUNT and UNTIL: RULE:FREQ=MINUTELY;INTERVAL=10;COUNT=5;UNTIL=20220101",
             "rrule parsing failed validation: 'NoneType' object has no attribute 'group'",
         ]