diff --git a/apps/essimporter/importer.cpp b/apps/essimporter/importer.cpp
index 73a12769ab..10fad37b0e 100644
--- a/apps/essimporter/importer.cpp
+++ b/apps/essimporter/importer.cpp
@@ -1,4 +1,5 @@
 #include "importer.hpp"
+#include <boost/shared_ptr.hpp>
 
 #include <OgreRoot.h>