diff --git a/src/net/Resolver.cxx b/src/net/Resolver.cxx
index a3734ce67..e4c6c48a3 100644
--- a/src/net/Resolver.cxx
+++ b/src/net/Resolver.cxx
@@ -44,7 +44,6 @@
 #include <net/if.h>
 #endif
 
-#include <cerrno>
 #include <cstring>
 
 #include <stdio.h>