diff --git a/CMakeLists.txt b/CMakeLists.txt
index 69bf25f5..ff9a24e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,6 +69,11 @@ endif()
 set(LWS_OPENSSL_CLIENT_CERTS ../share CACHE PATH "Server SSL certificate directory")
 if (WIN32)
 	set(LWS_OPENSSL_CLIENT_CERTS . CACHE PATH "Client SSL certificate directory")
+
+	if (LWS_IPV6)
+		set(LWS_IPV6 OFF)
+		message(WARNING "IPv6 does currently not work on Windows!")
+	endif()
 else()
 	set(LWS_OPENSSL_CLIENT_CERTS /etc/pki/tls/certs/ CACHE PATH "Client SSL certificate directory")
 endif()