diff --git a/boards/risc-v/c906/smartl-c906/kernel/c906_userspace.c b/boards/risc-v/c906/smartl-c906/kernel/c906_userspace.c
index 1f5a2f34aad..9f24ab1a9d7 100644
--- a/boards/risc-v/c906/smartl-c906/kernel/c906_userspace.c
+++ b/boards/risc-v/c906/smartl-c906/kernel/c906_userspace.c
@@ -99,9 +99,6 @@ const struct userspace_s userspace __attribute__ ((section (".userspace"))) =
   /* Task/thread startup routines */
 
   .task_startup     = nxtask_startup,
-#ifndef CONFIG_DISABLE_PTHREAD
-  .pthread_startup  = pthread_startup,
-#endif
 
   /* Signal handler trampoline */