diff --git a/utils/opt-viewer/opt-stats.py b/utils/opt-viewer/opt-stats.py
index 7ce935b492c..d67de7e359c 100755
--- a/utils/opt-viewer/opt-stats.py
+++ b/utils/opt-viewer/opt-stats.py
@@ -24,10 +24,6 @@ if __name__ == '__main__':
         help='Max job count (defaults to %(default)s, the current CPU count)')
     args = parser.parse_args()
 
-    if len(args.yaml_files) == 0:
-        parser.print_help()
-        sys.exit(1)
-
     if args.jobs == 1:
         pmap = map
     else:
diff --git a/utils/opt-viewer/opt-viewer.py b/utils/opt-viewer/opt-viewer.py
index 5e076d86dbe..3f5503f26b1 100755
--- a/utils/opt-viewer/opt-viewer.py
+++ b/utils/opt-viewer/opt-viewer.py
@@ -216,10 +216,6 @@ if __name__ == '__main__':
         help='set source directory')
     args = parser.parse_args()
 
-    if len(args.yaml_files) == 0:
-        parser.print_help()
-        sys.exit(1)
-
     if args.jobs == 1:
         pmap = map
     else: