diff --git a/package/uacme/Config.in b/package/uacme/Config.in
index 58b7c534e7..ba60d787f0 100644
--- a/package/uacme/Config.in
+++ b/package/uacme/Config.in
@@ -16,6 +16,30 @@ config BR2_PACKAGE_UACME
 
 if BR2_PACKAGE_UACME
 
+choice
+	prompt "Crypto Backend"
+	help
+	  Select crypto library to be used in uacme.
+
+config BR2_PACKAGE_UACME_GNUTLS
+	bool "gnutls"
+	depends on BR2_PACKAGE_GNUTLS
+
+config BR2_PACKAGE_UACME_MBEDTLS
+	bool "mbedtls"
+	depends on BR2_PACKAGE_MBEDTLS
+	depends on !BR2_PACKAGE_UACME_UALPN
+
+comment "mbedtls crypto backend unavailable with ualpn"
+	depends on BR2_PACKAGE_MBEDTLS
+	depends on BR2_PACKAGE_UACME_UALPN
+
+config BR2_PACKAGE_UACME_OPENSSL
+	bool "openssl"
+	depends on BR2_PACKAGE_OPENSSL
+
+endchoice
+
 config BR2_PACKAGE_UACME_UALPN
 	bool "enable ualpn"
 	depends on BR2_TOOLCHAIN_HAS_THREADS
diff --git a/package/uacme/uacme.mk b/package/uacme/uacme.mk
index 7e544fce79..0fb00d6c90 100644
--- a/package/uacme/uacme.mk
+++ b/package/uacme/uacme.mk
@@ -15,13 +15,13 @@ UACME_DEPENDENCIES = libcurl
 
 UACME_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'
 
-ifeq ($(BR2_PACKAGE_GNUTLS),y)
+ifeq ($(BR2_PACKAGE_UACME_GNUTLS),y)
 UACME_CONF_OPTS += --with-gnutls
 UACME_DEPENDENCIES += gnutls
-else ifeq ($(BR2_PACKAGE_MBEDTLS),y)
+else ifeq ($(BR2_PACKAGE_UACME_MBEDTLS),y)
 UACME_CONF_OPTS += --with-mbedtls
 UACME_DEPENDENCIES += mbedtls
-else ifeq ($(BR2_PACKAGE_OPENSSL),y)
+else ifeq ($(BR2_PACKAGE_UACME_OPENSSL),y)
 UACME_CONF_OPTS += --with-openssl
 UACME_DEPENDENCIES += openssl
 endif