diff --git a/src/core/linux/SDL_threadprio.c b/src/core/linux/SDL_threadprio.c
index edfe7d11c..0ea8239f6 100644
--- a/src/core/linux/SDL_threadprio.c
+++ b/src/core/linux/SDL_threadprio.c
@@ -181,6 +181,10 @@ rtkit_setpriority_realtime(pid_t thread, int rt_priority)
     }
     return SDL_TRUE;
 }
+#else
+
+#define rtkit_max_realtime_priority 99
+
 #endif /* dbus */
 #endif /* threads */