diff --git a/docs/examples/http3.c b/docs/examples/http3.c
index 34d7da4ee8..573ea20d2b 100644
--- a/docs/examples/http3.c
+++ b/docs/examples/http3.c
@@ -38,7 +38,7 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 
     /* Use HTTP/3 but fallback to earlier HTTP if necessary */
-    curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, (long)CURL_HTTP_VERSION_3);
+    curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_3);
 
     /* Perform the request, res gets the return code */
     res = curl_easy_perform(curl);