diff --git a/apparmor_kernel_development_guide.md b/apparmor_kernel_development_guide.md
index 7f7bd6e..2ac0174 100644
--- a/apparmor_kernel_development_guide.md
+++ b/apparmor_kernel_development_guide.md
@@ -6,6 +6,10 @@ hooks
 
 
 label
+- vector of labels
+
+aa_proxy
+- used to proxy profile replacement
 
 permission mapping