diff --git a/libio/genops.c b/libio/genops.c
index 9f18861d7b..d7e35e67d5 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -135,9 +135,7 @@ libc_hidden_def (_IO_link_in)
 
 /* Return minimum _pos markers
    Assumes the current get area is the main get area. */
-ssize_t _IO_least_marker (FILE *fp, char *end_p);
-
-ssize_t
+static ssize_t
 _IO_least_marker (FILE *fp, char *end_p)
 {
   ssize_t least_so_far = end_p - fp->_IO_read_base;