diff --git a/module/device/screenshot.py b/module/device/screenshot.py
index eb9a83e2f..f7ac998bf 100644
--- a/module/device/screenshot.py
+++ b/module/device/screenshot.py
@@ -288,8 +288,8 @@ class Screenshot(Screenshot):
             # No limitation for manual set in code
             pass
         else:
-            logger.warning(f'Unknown screenshot interval: {interval}')
-            raise ScriptError(f'Unknown screenshot interval: {interval}')
+            logger.warning(f'Unknown screenshot interval: {interval}, use 0.5s')
+            interval = 0.5
 
         logger.info(f'Screenshot interval set to {interval}s')
         self._screenshot_interval.limit = interval