diff --git a/mach/pdp/Action b/mach/pdp/Action
index 3051d78c3..6b6984360 100644
--- a/mach/pdp/Action
+++ b/mach/pdp/Action
@@ -31,3 +31,7 @@ name "PDP 11 Basic library"
 system pdp*
 dir libbc
 end
+name "PDP 11 Occam library"
+system pdp*
+dir liboc
+end