diff --git a/src/db.h b/src/db.h
index b3f269f..bb494c5 100644
--- a/src/db.h
+++ b/src/db.h
@@ -13,7 +13,7 @@
 #include <vector>
 
 #include <boost/filesystem.hpp>
-#include <db_cxx.h>
+#include DB_CXX_HEADER
 
 class CAddrMan;
 class CBlockLocator;