diff --git a/src/kernel/core/messaging/MessagingService.cpp b/src/kernel/core/messaging/MessagingService.cpp
index 5a87b37cd6..d642e2b4ce 100644
--- a/src/kernel/core/messaging/MessagingService.cpp
+++ b/src/kernel/core/messaging/MessagingService.cpp
@@ -15,6 +15,8 @@
 
 #include "MessagingService.h"
 
+using namespace std;
+
 static MessagingService *sMessagingService = NULL;
 
 static const int32 kMessagingAreaSize = B_PAGE_SIZE * 4;