diff --git a/src/libbitdht.pro b/src/libbitdht.pro
index 6f705fa..ed576a7 100644
--- a/src/libbitdht.pro
+++ b/src/libbitdht.pro
@@ -1,3 +1,5 @@
+!include("../../retroshare.pri"): error("Could not include file ../../retroshare.pri")
+
 TEMPLATE = lib
 CONFIG += staticlib
 CONFIG -= qt