diff --git a/examples/raw_async_https_request/build_opt.h b/examples/raw_async_https_request/build_opt.h
new file mode 100644
index 0000000..a29b2d5
--- /dev/null
+++ b/examples/raw_async_https_request/build_opt.h
@@ -0,0 +1 @@
+-DASYNC_TCP_SSL_ENABLED=1
diff --git a/examples/raw_async_https_request/raw_async_https_request.ino b/examples/raw_async_https_request/raw_async_https_request.ino
index d0a89c3..a14d5f8 100644
--- a/examples/raw_async_https_request/raw_async_https_request.ino
+++ b/examples/raw_async_https_request/raw_async_https_request.ino
@@ -5,6 +5,9 @@
 const char* ssid        = "YOUR-WIFI-SSID-HERE";
 const char* password    = "YOUR-WIFI-PASSWORD-HERE";
 
+// On your Arduino projects, create the file build_opt.h if it does not exist
+// and add the following single line to enable AsyncTCP SSL support:
+// -DASYNC_TCP_SSL_ENABLED=1
 #ifndef ASYNC_TCP_SSL_ENABLED
 #error The macro ASYNC_TCP_SSL_ENABLED has not been correctly enabled in your environment!
 #endif