diff --git a/galera/src/wsdb.cpp b/galera/src/wsdb.cpp
index c5d5102fd..aafef5e80 100644
--- a/galera/src/wsdb.cpp
+++ b/galera/src/wsdb.cpp
@@ -9,6 +9,7 @@
 #include "gu_lock.hpp"
 #include "gu_throw.hpp"
 
+#include <algorithm> // std::for_each
 
 void galera::Wsdb::print(std::ostream& os) const
 {