diff --git a/wscript b/wscript
index e1d56e6..d0337ba 100644
--- a/wscript
+++ b/wscript
@@ -77,6 +77,7 @@
           use = 'BOOST ChronoChat',
           includes = "src .",
           install_path = None,
+          defines = 'TEST_CERT_PATH=\"%s/cert-test\"' %(bld.bldnode),
           )
 
     # Debug tools