diff --git a/src/kernel/include/kernel_log.hpp b/src/kernel/include/kernel_log.hpp
index 80cdaacb3..beb76bc8f 100644
--- a/src/kernel/include/kernel_log.hpp
+++ b/src/kernel/include/kernel_log.hpp
@@ -21,6 +21,7 @@
 
 #include "../../project_config.h"
 #include "cstdio"
+#include "iostream"
 
 namespace {