diff --git a/yadm.1 b/yadm.1
index f16a34e..9921661 100644
--- a/yadm.1
+++ b/yadm.1
@@ -913,6 +913,12 @@ Hooks have the following environment variables available to them at runtime:
 .B YADM_HOOK_COMMAND
 The command which triggered the hook
 .TP
+.B YADM_HOOK_DATA
+The path to the yadm data directory
+.TP
+.B YADM_HOOK_DIR
+The path to the yadm directory
+.TP
 .B YADM_HOOK_EXIT
 The exit status of the yadm command
 .TP