diff --git a/libs/pbd/pbd.cc b/libs/pbd/pbd.cc
index 858d870c1a..0d78db1d37 100644
--- a/libs/pbd/pbd.cc
+++ b/libs/pbd/pbd.cc
@@ -31,6 +31,7 @@
 
 #include "pbd/pbd.h"
 #include "pbd/debug.h"
+#include "pbd/error.h"
 #include "pbd/id.h"
 #include "pbd/enumwriter.h"