diff --git a/pages/common/uptime.md b/pages/common/uptime.md
index 3c956d01d..af8e6adfa 100644
--- a/pages/common/uptime.md
+++ b/pages/common/uptime.md
@@ -1,6 +1,7 @@
 # uptime
 
 > Tell how long the system has been running and other information.
+> More information: <https://www.gnu.org/software/coreutils/manual/html_node/uptime-invocation.html>.
 
 - Print current time, uptime, number of logged-in users and other information: