diff --git a/projects/capture_screenshot/screenshot.py b/projects/capture_screenshot/screenshot.py
index 9ed62cfdb..9fb486e5e 100644
--- a/projects/capture_screenshot/screenshot.py
+++ b/projects/capture_screenshot/screenshot.py
@@ -18,6 +18,8 @@
     sec = 60 * 60 / args.frequency
 elif args.type == 'm':
     sec = 60 / args.frequency
+elif args.type == 's':
+    sec = args.frequency
 
 if sec < 1.:
     sec = 1.