diff --git a/examples/http-restful-server/Makefile b/examples/http-restful-server/Makefile
index 421f9142..51d9e194 100644
--- a/examples/http-restful-server/Makefile
+++ b/examples/http-restful-server/Makefile
@@ -1,12 +1,13 @@
 PROG ?= example
-
 CFLAGS ?= -W -Wall -DMG_ENABLE_LINES=1
-ifneq ($(MBEDTLS_DIR),)
-CFLAGS += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS_DIR)/include -I/usr/include
-CFLAGS += -L$(MBEDTLS_DIR)/lib -lmbedtls -lmbedcrypto -lmbedx509
-else ifneq ($(OPENSSL_DIR),)
-CFLAGS += -DMG_ENABLE_OPENSSL=1 -I$(OPENSSL_DIR)/include
-CFLAGS += -L$(OPENSSL_DIR)/lib -lssl -lcrypto
+SSL = ?
+
+ifeq "$(SSL)" "MBEDTLS"
+CFLAGS += -DMG_ENABLE_MBEDTLS=1 -lmbedtls -lmbedcrypto -lmbedx509
+endif
+
+ifeq "$(SSL)" "OPENSSL"
+CFLAGS += -DMG_ENABLE_OPENSSL=1 -lssl -lcrypto
 endif
 
 all: $(PROG)
diff --git a/examples/http-restful-server/main.c b/examples/http-restful-server/main.c
index 95c24916..9f4df1fd 100644
--- a/examples/http-restful-server/main.c
+++ b/examples/http-restful-server/main.c
@@ -9,7 +9,7 @@
 //    any other URI serves static files from s_root_dir
 //
 // To enable SSL/TLS (using self-signed certificates in PEM files),
-//    1. make MBEDTLS_DIR=/path/to/your/mbedtls/installation
+//    1. make SSL=OPENSSL or make SSL=MBEDTLS 
 //    2. curl -k https://127.0.0.1:8443
 
 #include "mongoose.h"