diff --git a/doc/update/6.x-or-7.x-to-7.6.md b/doc/update/6.x-or-7.x-to-7.6.md
index 883a654dcd..4d60ebb023 100644
--- a/doc/update/6.x-or-7.x-to-7.6.md
+++ b/doc/update/6.x-or-7.x-to-7.6.md
@@ -125,6 +125,8 @@ sudo -u git -H git checkout v2.4.0
 ## 7. Install libs, migrations, etc.
 
 ```bash
+sudo apt-get install libkrb5-dev
+
 cd /home/git/gitlab
 
 # MySQL installations (note: the line below states '--without ... postgres')