diff --git a/pages/linux/powertop.md b/pages/linux/powertop.md
index c3abe7cfe..b1a319045 100644
--- a/pages/linux/powertop.md
+++ b/pages/linux/powertop.md
@@ -1,6 +1,7 @@
 # powertop
 
 > Optimize battery power usage.
+> More information: <https://github.com/fenrus75/powertop>.
 
 - Calibrate power usage measurements: