diff --git a/external/unbound/configure_checks.cmake b/external/unbound/configure_checks.cmake
index b65b48c2..ead51e98 100644
--- a/external/unbound/configure_checks.cmake
+++ b/external/unbound/configure_checks.cmake
@@ -59,7 +59,6 @@ check_function_exists(endservent HAVE_ENDSERVENT)
 check_function_exists(fnctl HAVE_FNCTL)
 check_function_exists(fork HAVE_FORK)
 check_function_exists(fseeko HAVE_FSEEKO)
-check_function_exists(getaddrinfo HAVE_GETADDRINFO)
 check_function_exists(getentropy HAVE_GETENTROPY)
 check_function_exists(getpwnam HAVE_GETPWNAM)
 check_function_exists(getrlimit HAVE_GETRLIMIT)
@@ -100,6 +99,17 @@ check_function_exists(usleep HAVE_USLEEP)
 check_function_exists(writev HAVE_WRITEV)
 check_function_exists(_beginthreadex HAVE__BEGINTHREADEX)
 
+set(getaddrinfo_headers)
+if (HAVE_NETDB_H)
+  list(APPEND getaddrinfo_headers "netdb.h")
+endif ()
+if (HAVE_WS2TCPIP_H)
+  list(APPEND getaddrinfo_headers "ws2tcpip.h")
+endif ()
+check_symbol_exists(getaddrinfo "${getaddrinfo_headers}" HAVE_GETADDRINFO)
+
+check_function_exists(getaddrinfo HAVE_GETADDRINFO)
+
 function (check_type_exists type variable header default)
   set(CMAKE_EXTRA_INCLUDE_FILES "${header}")
   check_type_size("${type}" "${variable}")