diff --git a/gtsam/base/concepts.h b/gtsam/base/concepts.h
index 6ff1a44d4c..ec02c7e570 100644
--- a/gtsam/base/concepts.h
+++ b/gtsam/base/concepts.h
@@ -8,6 +8,8 @@
 
 #pragma once
 
+#include <gtsam/config.h>
+
 #if GTSAM_USE_BOOST_FEATURES
 #include <boost/concept_check.hpp>
 #include <boost/concept/assert.hpp>