diff --git a/docs/libcurl/opts/CURLOPT_URL.3 b/docs/libcurl/opts/CURLOPT_URL.3
index 4b64905841..42d2ec25e4 100644
--- a/docs/libcurl/opts/CURLOPT_URL.3
+++ b/docs/libcurl/opts/CURLOPT_URL.3
@@ -70,6 +70,9 @@ transfer is started.
 
 The application does not have to keep the string around after setting this
 option.
+
+The parser used for handling the URL set with \fICURLOPT_URL(3)\fP is the same
+that \fIcurl_url_set(3)\fP uses.
 .SH ENCODING
 The string pointed to in the \fICURLOPT_URL(3)\fP argument is generally
 expected to be a sequence of characters using an ASCII compatible encoding.