diff --git a/src/bin/Jamfile b/src/bin/Jamfile
index 79553873b6..ab56ac6daa 100644
--- a/src/bin/Jamfile
+++ b/src/bin/Jamfile
@@ -1,5 +1,6 @@
 SubDir OBOS_TOP src bin ;
 
+UsePrivateHeaders app ;
 UsePrivateHeaders kernel ;
 UsePrivateHeaders shared ;
 UsePrivateHeaders storage ;