diff --git a/lang/cem/libcc/stdio/freopen.c b/lang/cem/libcc/stdio/freopen.c
index c217212c1..5711a2998 100644
--- a/lang/cem/libcc/stdio/freopen.c
+++ b/lang/cem/libcc/stdio/freopen.c
@@ -51,7 +51,7 @@ register FILE *fp;
 		return NULL;
 	}
 	fp->_count = 0;
-	if (fp->_buf) fp->_count = BUFSIZ;
+	if (fp->_buf && (flags | IO_WRITEMODE)) fp->_count = BUFSIZ;
 	fp->_fd = fd;
 	fp->_flags = flags;
 	return(fp);