diff --git a/kernel/kernel_config-4.13.x-aarch64 b/kernel/kernel_config-4.13.x-aarch64
index 88f6571ec..2c7df0eae 100644
--- a/kernel/kernel_config-4.13.x-aarch64
+++ b/kernel/kernel_config-4.13.x-aarch64
@@ -3864,7 +3864,7 @@ CONFIG_SECURITY_PATH=y
 CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
 CONFIG_HARDENED_USERCOPY=y
 # CONFIG_HARDENED_USERCOPY_PAGESPAN is not set
-# CONFIG_FORTIFY_SOURCE is not set
+CONFIG_FORTIFY_SOURCE=y
 CONFIG_STATIC_USERMODEHELPER=y
 CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
 # CONFIG_SECURITY_SELINUX is not set
diff --git a/kernel/kernel_config-4.13.x-x86_64 b/kernel/kernel_config-4.13.x-x86_64
index c096cfa1b..aa930368f 100644
--- a/kernel/kernel_config-4.13.x-x86_64
+++ b/kernel/kernel_config-4.13.x-x86_64
@@ -3817,7 +3817,7 @@ CONFIG_SECURITY_PATH=y
 CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
 CONFIG_HARDENED_USERCOPY=y
 # CONFIG_HARDENED_USERCOPY_PAGESPAN is not set
-# CONFIG_FORTIFY_SOURCE is not set
+CONFIG_FORTIFY_SOURCE=y
 CONFIG_STATIC_USERMODEHELPER=y
 CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
 # CONFIG_SECURITY_SELINUX is not set