diff --git a/packages/react-components/lib/tasks/types/patrol.tsx b/packages/react-components/lib/tasks/types/patrol.tsx
index 5fa3ea4d5..707dff5e4 100644
--- a/packages/react-components/lib/tasks/types/patrol.tsx
+++ b/packages/react-components/lib/tasks/types/patrol.tsx
@@ -125,6 +125,10 @@ export function PatrolTaskForm({
     onChange(desc);
   };
 
+  React.useEffect(() => {
+    onValidate(isPatrolTaskDescriptionValid(taskDesc));
+  }, [onValidate, taskDesc]);
+
   return (
     <Grid container spacing={theme.spacing(2)} justifyContent="center" alignItems="center">
       <Grid item xs={isScreenHeightLessThan800 ? 8 : 10}>