diff --git a/package/libiec61850/libiec61850.mk b/package/libiec61850/libiec61850.mk
index 92b27dc5c2..2bf98f1f3d 100644
--- a/package/libiec61850/libiec61850.mk
+++ b/package/libiec61850/libiec61850.mk
@@ -15,6 +15,9 @@ LIBIEC61850_CONF_OPTS = -DBUILD_PYTHON_BINDINGS=OFF
 ifeq ($(BR2_PACKAGE_MBEDTLS),y)
 LIBIEC61850_DEPENDENCIES += mbedtls
 LIBIEC61850_CONF_OPTS += -DCONFIG_USE_EXTERNAL_MBEDTLS_DYNLIB=ON
+LIBIEC61850_CONF_OPTS += \
+	-DCONFIG_EXTERNAL_MBEDTLS_DYNLIB_PATH=$(STAGING_DIR)/usr/lib \
+	-DCONFIG_EXTERNAL_MBEDTLS_INCLUDE_PATH=$(STAGING_DIR)/usr/include
 else
 LIBIEC61850_CONF_OPTS += -DCONFIG_USE_EXTERNAL_MBEDTLS_DYNLIB=OFF
 endif