diff --git a/nohang b/nohang
index 12585ba..8006843 100755
--- a/nohang
+++ b/nohang
@@ -714,7 +714,7 @@ try:
     shmem_index = status_names.index('RssShmem')
     detailed_rss = True
     print(detailed_rss, 'detailed_rss')
-except IndexError:
+except ValueError:
     detailed_rss = False
     print('It is not Linux 4.5+')