diff --git a/okapi.cpp b/okapi.cpp
index 29f3c29..dd2c61e 100644
--- a/okapi.cpp
+++ b/okapi.cpp
@@ -253,7 +253,9 @@ void Okapi::update_caches(Caches& cc) const {
 
 std::string Okapi::get_uuid(const std::string& username) const {
 	std::string service = url + OKAPI_username;
-	std::string query = "consumer_key=" + key + "&username=" + username + "&fields=uuid";
+	char* user_esc = curl_easy_escape(curl, username.c_str(), username.size()) ;
+	std::string query = "consumer_key=" + key + "&username=" + user_esc + "&fields=uuid";
+	curl_free(user_esc);
 	curl_post(service, query);
 	json j = json::parse(curl_output);
 	return j["uuid"];