diff --git a/src/common/freeotp.c b/src/common/freeotp.c
index 188afad..2cc671b 100644
--- a/src/common/freeotp.c
+++ b/src/common/freeotp.c
@@ -45,7 +45,7 @@ export_freeotpplus (const gchar *export_path,
     if (err == NULL) {
         json_array_foreach (json_db_data, index, db_obj) {
             gchar *uri = get_otpauth_uri (NULL, db_obj);
-            if (g_output_stream_write (G_OUTPUT_STREAM(out_stream), uri, g_utf8_strlen (uri, -1) + 1, NULL, &err) == -1) {
+            if (g_output_stream_write (G_OUTPUT_STREAM(out_stream), uri, g_utf8_strlen (uri, -1), NULL, &err) == -1) {
                 g_set_error (&err, generic_error_gquark (), GENERIC_ERRCODE, "couldn't dump json data to file");
             }
             g_free (uri);