diff --git a/templates/busybox-initramfs/dotconfig b/templates/busybox-initramfs/dotconfig
index 0292459f61..aa66b60e58 100644
--- a/templates/busybox-initramfs/dotconfig
+++ b/templates/busybox-initramfs/dotconfig
@@ -873,8 +873,8 @@ CONFIG_ASH_EXPAND_PRMT=y
 # CONFIG_HUSH_EXPORT_N is not set
 # CONFIG_LASH is not set
 # CONFIG_MSH is not set
-# CONFIG_SH_MATH_SUPPORT is not set
-# CONFIG_SH_MATH_SUPPORT_64 is not set
+CONFIG_SH_MATH_SUPPORT=yes
+CONFIG_SH_MATH_SUPPORT_64=yes
 # CONFIG_FEATURE_SH_EXTRA_QUIET is not set
 # CONFIG_FEATURE_SH_STANDALONE is not set
 # CONFIG_FEATURE_SH_NOFORK is not set