diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 9cbd9bb..f030e44 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -47,6 +47,7 @@ EXPORT_SYMBOL(copy_to_user_tt);
 #endif
 
 #ifdef CONFIG_MODE_SKAS
+EXPORT_SYMBOL(strnlen_user_skas);
 EXPORT_SYMBOL(strncpy_from_user_skas);
 EXPORT_SYMBOL(copy_to_user_skas);
 EXPORT_SYMBOL(copy_from_user_skas);