diff --git a/package/casync-nano/Config.in b/package/casync-nano/Config.in
index 8ba80e4ce6..e0e555eda3 100644
--- a/package/casync-nano/Config.in
+++ b/package/casync-nano/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_CASYNC_NANO
 	bool "casync-nano"
 	select BR2_PACKAGE_OPENSSL
+	select BR2_PACKAGE_LIBOPENSSL_ENABLE_CHACHA if BR2_PACKAGE_LIBOPENSSL
 	select BR2_PACKAGE_ZSTD
 	select BR2_PACKAGE_LIBCURL
 	help