1 files changed, 2 insertions, 0 deletions
diff --git a/libc/unistd/usershell.c b/libc/unistd/usershell.c
index 13351de9f..b1a932918 100644
--- a/libc/unistd/usershell.c
+++ b/libc/unistd/usershell.c
@@ -109,7 +109,9 @@ static char ** initshells(void)
 	goto cleanup;
     }
     /* No threads using this stream.  */
+#ifdef __UCLIBC_HAS_THREADS__
     __fsetlocking (fp, FSETLOCKING_BYCALLER);
+#endif
     sp = shells;
     cp = strings;
     flen = statb.st_size;