diff --git a/examples/ostest/Makefile b/examples/ostest/Makefile
index ca8d145e7..99d4d3adf 100644
--- a/examples/ostest/Makefile
+++ b/examples/ostest/Makefile
@@ -80,7 +80,7 @@ ifeq ($(CONFIG_FS_NAMED_SEMAPHORES),y)
 CSRCS += nsem.c
 endif
 
-ifeq ($(CONFIG_MUTEX_TYPES),y)
+ifeq ($(CONFIG_PTHREAD_MUTEX_TYPES),y)
 CSRCS += rmutex.c
 endif
 
diff --git a/examples/ostest/ostest_main.c b/examples/ostest/ostest_main.c
index d303a9be4..7d1734c97 100644
--- a/examples/ostest/ostest_main.c
+++ b/examples/ostest/ostest_main.c
@@ -373,7 +373,7 @@ static int user_main(int argc, char *argv[])
       check_test_memory_usage();
 #endif
 
-#if !defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_MUTEX_TYPES)
+#if !defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_PTHREAD_MUTEX_TYPES)
       /* Verify recursive mutexes */
 
       printf("\nuser_main: recursive mutex test\n");