diff --git a/xwayland/meson.build b/xwayland/meson.build
index c21f4383..5d22584b 100644
--- a/xwayland/meson.build
+++ b/xwayland/meson.build
@@ -82,4 +82,4 @@ wlr_deps += xwayland_libs
 features += { 'xwayland': true }
 
 have = cc.has_function('xcb_xfixes_set_client_disconnect_mode', dependencies: xwayland_libs)
-internal_config.set10('HAS_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE', have)
+internal_config.set10('HAVE_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE', have)
diff --git a/xwayland/xwayland.c b/xwayland/xwayland.c
index abaebd0d..75c09f31 100644
--- a/xwayland/xwayland.c
+++ b/xwayland/xwayland.c
@@ -102,7 +102,7 @@ struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
 	struct wlr_xwayland_server_options options = {
 		.lazy = lazy,
 		.enable_wm = true,
-#if HAS_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE
+#if HAVE_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE
 		.terminate_delay = lazy ? 10 : 0,
 #endif
 	};
diff --git a/xwayland/xwm.c b/xwayland/xwm.c
index 61d29f91..59773c6c 100644
--- a/xwayland/xwm.c
+++ b/xwayland/xwm.c
@@ -2130,7 +2130,7 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *xwayland, int wm_fd) {
 		sizeof(supported)/sizeof(*supported),
 		supported);
 
-#if HAS_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE
+#if HAVE_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE
 	if (xwm->xwayland->server->options.terminate_delay > 0 &&
 			xwm->xfixes_major_version >= 6) {
 		xcb_xfixes_set_client_disconnect_mode(xwm->xcb_conn,