1 files changed, 2 insertions, 1 deletions

diff --git a/src/fs/test_fs_file_information.c b/src/fs/test_fs_file_information.c
index 34ac3285e..0a2969cd3 100644
--- a/src/fs/test_fs_file_information.c
+++ b/src/fs/test_fs_file_information.c
@@ -152,7 +152,8 @@ testThumbnail ()
   if (ex == NULL)
   {
     FPRINTF (stderr,
-             "Test incomplete, have no GTK thumbnail extractor available.\n", NULL);
+             "%s",
+             "Test incomplete, have no GTK thumbnail extractor available.\n");
     return 0;                   /* can not test, no thumbnailer */
   }
   ex = EXTRACTOR_plugin_add_config (ex, "mime",