diff --git a/src/rest.c b/src/rest.c
index 647458e..f836ef6 100644
--- a/src/rest.c
+++ b/src/rest.c
@@ -7979,11 +7979,12 @@ static int og_cmd_delete_server(json_t *element,
 	struct og_dbi *dbi;
 	dbi_result result;
 	json_t *value;
+	uint32_t id;
 	int err = 0;
 
 	json_object_foreach(element, key, value) {
 		if (!strcmp(key, "id")) {
-			err = og_json_parse_string(value, &params->id);
+			err = og_json_parse_uint(value, &id);
 			params->flags |= OG_REST_PARAM_ID;
 		}
 
@@ -8002,8 +8003,8 @@ static int og_cmd_delete_server(json_t *element,
 	}
 
 	result = dbi_conn_queryf(dbi->conn,
-				 "DELETE FROM entornos WHERE identorno='%s'",
-				 params->id);
+				 "DELETE FROM entornos WHERE identorno='%u'",
+				 id);
 
 	if (!result) {
 		dbi_conn_error(dbi->conn, &msglog);