diff --git a/sched/Kconfig b/sched/Kconfig
index 69b19926536..6209e8c1786 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -41,7 +41,8 @@ config DISABLE_PTHREAD
 
 config DISABLE_MQUEUE
 	bool "Disable POSIX message queue support"
-	default n
+	default y if DEFAULT_SMALL
+	default n if !DEFAULT_SMALL
 
 config DISABLE_ENVIRON
 	bool "Disable environment variable support"