diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6afe0af0a19b..5330911ebd30 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -109,7 +109,6 @@ config DEBUG_MUTEXES
 
 config DEBUG_RT_MUTEXES
 	bool "RT Mutex debugging, deadlock detection"
-	default y
 	depends on DEBUG_KERNEL && RT_MUTEXES
 	help
 	 This allows rt mutex semantics violations and rt mutex related
@@ -122,8 +121,7 @@ config DEBUG_PI_LIST
 
 config RT_MUTEX_TESTER
 	bool "Built-in scriptable tester for rt-mutexes"
-	depends on RT_MUTEXES
-	default n
+	depends on DEBUG_KERNEL && RT_MUTEXES
 	help
 	  This option enables a rt-mutex tester.