diff --git a/rak/error_number.h b/rak/error_number.h
index aa40deb9..2948a97e 100644
--- a/rak/error_number.h
+++ b/rak/error_number.h
@@ -51,6 +51,7 @@ public:
   static const int e_deadlk      = EDEADLK;
 
   static const int e_noent       = ENOENT;
+  static const int e_nodev       = ENODEV;
   static const int e_nomem       = ENOMEM;
   static const int e_notdir      = ENOTDIR;
   static const int e_isdir       = EISDIR;