diff --git a/package/stunnel/stunnel.mk b/package/stunnel/stunnel.mk
index a8eb652bff..473fc81900 100644
--- a/package/stunnel/stunnel.mk
+++ b/package/stunnel/stunnel.mk
@@ -17,6 +17,11 @@ STUNNEL_LICENSE_FILES = COPYING.md COPYRIGHT.md
 STUNNEL_CPE_ID_VENDOR = stunnel
 STUNNEL_SELINUX_MODULES = stunnel
 
+# gcc for ARM Thumb1 doesn't implement -fstack-clash-protection
+ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
+STUNNEL_CONF_ENV += ax_cv_check_cflags___fstack_clash_protection=no
+endif
+
 ifeq ($(BR2_INIT_SYSTEMD),y)
 STUNNEL_DEPENDENCIES += systemd
 else