diff --git a/src/error_code.cpp b/src/error_code.cpp
index 43119ae..3eb6a21 100644
--- a/src/error_code.cpp
+++ b/src/error_code.cpp
@@ -23,7 +23,7 @@
 #include <cassert>
 
 using namespace boost::system;
-using namespace boost::system::posix_error;
+using namespace boost::system::errc;
 
 #include <cstring> // for strerror/strerror_r