diff --git a/pages/common/gdb.md b/pages/common/gdb.md
index fa18ff144..c24c09ab9 100644
--- a/pages/common/gdb.md
+++ b/pages/common/gdb.md
@@ -1,6 +1,7 @@
 # gdb
 
 > The GNU Debugger.
+> More information: <https://www.gnu.org/software/gdb>.
 
 - Debug an executable: