diff --git a/tools/check_curl_symbols.py b/tools/check_curl_symbols.py
index a388b4356..deeb6de2a 100755
--- a/tools/check_curl_symbols.py
+++ b/tools/check_curl_symbols.py
@@ -30,6 +30,12 @@ URL=https://raw.githubusercontent.com/curl/curl/master/docs/libcurl/symbols-in-v
 curl $URL | ./check_curl_symbols.py
 ```
 
+Or with Curl repository cloned locally:
+
+```
+./check_curl_symbols.py < /path/to/curl/docs/libcurl/symbols-in-versions
+```
+
 This script requires Python 3.7+.
 """