diff --git a/server/core/load_utils.cc b/server/core/load_utils.cc
index d21522e0c..1f34b49e1 100644
--- a/server/core/load_utils.cc
+++ b/server/core/load_utils.cc
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <dlfcn.h>
 #include <algorithm>
+#include <string>
 
 #include <maxscale/modinfo.h>
 #include <maxscale/log_manager.h>