diff --git a/docs/libcurl/opts/CURLOPT_HSTS_CTRL.md b/docs/libcurl/opts/CURLOPT_HSTS_CTRL.md
index 3ed7f3c597..589f7aca13 100644
--- a/docs/libcurl/opts/CURLOPT_HSTS_CTRL.md
+++ b/docs/libcurl/opts/CURLOPT_HSTS_CTRL.md
@@ -23,8 +23,8 @@ CURLOPT_HSTS_CTRL - control HSTS behavior
 ~~~c
 #include <curl/curl.h>
 
-#define CURLHSTS_ENABLE       (long)(1<<0)
-#define CURLHSTS_READONLYFILE (long)(1<<1)
+#define CURLHSTS_ENABLE       (1L<<0)
+#define CURLHSTS_READONLYFILE (1L<<1)
 
 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTS_CTRL, long bitmask);
 ~~~
diff --git a/include/curl/curl.h b/include/curl/curl.h
index cca5a4433f..6f4aa90f13 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -1067,8 +1067,8 @@ typedef CURLSTScode (*curl_hstswrite_callback)(CURL *easy,
                                                void *userp);
 
 /* CURLHSTS_* are bits for the CURLOPT_HSTS option */
-#define CURLHSTS_ENABLE       (long)(1<<0)
-#define CURLHSTS_READONLYFILE (long)(1<<1)
+#define CURLHSTS_ENABLE       (1L<<0)
+#define CURLHSTS_READONLYFILE (1L<<1)
 
 /* The CURLPROTO_ defines below are for the **deprecated** CURLOPT_*PROTOCOLS
    options. Do not use. */