diff --git a/changelog.d/78.bugfix b/changelog.d/78.bugfix
new file mode 100644
index 0000000..2e7a3f0
--- /dev/null
+++ b/changelog.d/78.bugfix
@@ -0,0 +1 @@
+cleanup.py: Handle --repeat-delay-hours not being passed correctly.
diff --git a/scripts/cleanup.py b/scripts/cleanup.py
index e55d18e..2901889 100755
--- a/scripts/cleanup.py
+++ b/scripts/cleanup.py
@@ -213,7 +213,7 @@ def main():
 
     args = parser.parse_args()
 
-    if args.repeat_delay_hours is defined:
+    if args.repeat_delay_hours is not None:
         while True:
             execute(args)
             print("I =====================================================")