diff --git a/package/uacme/uacme.mk b/package/uacme/uacme.mk
index 9b2360937b..b260bd85ee 100644
--- a/package/uacme/uacme.mk
+++ b/package/uacme/uacme.mk
@@ -13,12 +13,15 @@ UACME_LICENSE = GPL-3.0+
 UACME_LICENSE_FILES = COPYING
 UACME_DEPENDENCIES = libcurl
 
-UACME_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'
+UACME_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' LIBS="$(UACME_LIBS)"
 
 ifeq ($(BR2_PACKAGE_GNUTLS),y)
 UACME_CONF_OPTS += --with-gnutls
 UACME_DEPENDENCIES += gnutls
 else ifeq ($(BR2_PACKAGE_MBEDTLS),y)
+ifeq ($(BR2_PACKAGE_MBEDTLS_COMPRESSION),y)
+    UACME_LIBS += -lz
+endif
 UACME_CONF_OPTS += --with-mbedtls
 UACME_DEPENDENCIES += mbedtls
 else ifeq ($(BR2_PACKAGE_OPENSSL),y)