diff --git a/legacy/ecore/configure.ac b/legacy/ecore/configure.ac
index cc44f50d4c..115e75f035 100644
--- a/legacy/ecore/configure.ac
+++ b/legacy/ecore/configure.ac
@@ -1248,7 +1248,7 @@ AC_CHECK_HEADERS([net/if.h], [], [],
 # include <sys/socket.h>
 #endif
 ])
-AC_CHECK_HEADERS([sys/un.h arpa/inet.h arpa/nameser.h netinet/tcp.h netinet/in.h ws2tcpip.h netdb.h])
+AC_CHECK_HEADERS([sys/un.h arpa/inet.h arpa/nameser.h netinet/tcp.h netinet/in.h ws2tcpip.h netdb.h errno.h])
 
 if test "x${ac_cv_header_netdb_h}" = "xyes" ; then
    have_addrinfo="yes"
diff --git a/legacy/ecore/src/lib/ecore_con/ecore_con_dns.c b/legacy/ecore/src/lib/ecore_con/ecore_con_dns.c
index 1120ee8077..979163fa31 100644
--- a/legacy/ecore/src/lib/ecore_con/ecore_con_dns.c
+++ b/legacy/ecore/src/lib/ecore_con/ecore_con_dns.c
@@ -20,6 +20,10 @@
 # include <arpa/inet.h>
 #endif
 
+#ifdef HAVE_ERRNO_H
+# include <errno.h>
+#endif
+
 #include "dns.h"
 
 #include "Ecore.h"