diff --git a/build/build.properties b/build/build.properties
index d3263d9..e3c6076 100644
--- a/build/build.properties
+++ b/build/build.properties
@@ -1,4 +1,5 @@
 extensions = svn,headers,check
 platform = vc100
+src.dir = ${root.dir}
 tests.dir = ${root.dir}
 libraries.dir = ${root.dir}