diff --git a/mastoapi.c b/mastoapi.c
index 73b9a8b..825f207 100644
--- a/mastoapi.c
+++ b/mastoapi.c
@@ -171,7 +171,7 @@ const char *login_page = ""
 "<body><h1>%s OAuth identify</h1>\n"
 "<div style=\"background-color: red; color: white\">%s</div>\n"
 "<form method=\"post\" action=\"%s:/" "/%s/%s\">\n"
-"<p>Login: <input type=\"text\" name=\"login\"></p>\n"
+"<p>Login: <input type=\"text\" name=\"login\" autocapitalize=\"off\"></p>\n"
 "<p>Password: <input type=\"password\" name=\"passwd\"></p>\n"
 "<input type=\"hidden\" name=\"redir\" value=\"%s\">\n"
 "<input type=\"hidden\" name=\"cid\" value=\"%s\">\n"
