diff --git a/glfw/wl_init.c b/glfw/wl_init.c
index bf41d107f..0062d995a 100644
--- a/glfw/wl_init.c
+++ b/glfw/wl_init.c
@@ -752,10 +752,12 @@ get_compositor_missing_capabilities(void) {
     C(idle_inhibit, idle_inhibit_manager); C(icon, xdg_toplevel_icon_manager_v1); C(bell, xdg_system_bell_v1);
     C(window-tag, xdg_toplevel_tag_manager_v1); C(keyboard_shortcuts_inhibit, keyboard_shortcuts_inhibit_manager);
     C(color-manager, wp_color_manager_v1);
-    if (_glfw.wl.xdg_wm_base_version < 6) p += snprintf(p, sizeof(buf) - (p - buf), "%s ", "window-state-suspended");
-    if (_glfw.wl.xdg_wm_base_version < 5) p += snprintf(p, sizeof(buf) - (p - buf), "%s ", "window-capabilities");
-    if (!_glfw.wl.color_manager.supported_transfer_functions.gamma22) p += snprintf(p, sizeof(buf) - (p - buf), "%s ", "gamma22");
-    if (!_glfw.wl.color_manager.supported_transfer_functions.ext_linear) p += snprintf(p, sizeof(buf) - (p - buf), "%s ", "ext_linear");
+#define P(x) p += snprintf(p, sizeof(buf) - (p - buf), "%s ", x);
+    if (_glfw.wl.xdg_wm_base_version < 6) P("window-state-suspended");
+    if (_glfw.wl.xdg_wm_base_version < 5) P("window-capabilities");
+    if (!_glfw.wl.color_manager.supported_transfer_functions.gamma22) P("gamma22");
+    if (!_glfw.wl.color_manager.supported_transfer_functions.ext_linear) P("ext_linear");
+#undef P
 #undef C
     while (p > buf && (p - 1)[0] == ' ') { p--; *p = 0; }
     return buf;