diff --git a/src/physfs.c b/src/physfs.c
index 02186f6..71755c9 100644
--- a/src/physfs.c
+++ b/src/physfs.c
@@ -1431,7 +1431,7 @@ static int doRegisterArchiver(const PHYSFS_Archiver *_archiver)
     for (i = 0; i < numArchivers; i++)
     {
         if (__PHYSFS_utf8stricmp(archiveInfo[i]->extension, ext) == 0)
-            BAIL(PHYSFS_ERR_DUPLICATE, 0);  /* !!! FIXME: better error? ERR_IN_USE? */
+            BAIL(PHYSFS_ERR_DUPLICATE, 0);
     } /* for */
 
     /* make a copy of the data. */