1 files changed, 1 insertions, 0 deletions
diff --git a/dw/core.hh b/dw/core.hh
index fcf8ef4b..286243fa 100644
--- a/dw/core.hh
+++ b/dw/core.hh
@@ -45,6 +45,7 @@ class ResourceFactory;
 #include "../lout/container.hh"
 #include "../lout/signal.hh"
 
+#include "tools.hh"
 #include "types.hh"
 #include "events.hh"
 #include "imgbuf.hh"