diff --git a/bootstrap.conf b/bootstrap.conf
index 13a54ee7f1..7db7dad7bd 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -49,8 +49,8 @@ gnulib_modules="
   fpucw
   frexp
   frexpf
-  fseek
-  ftell
+  fseeko
+  ftello
   ftruncate
   getcwd
   gethostname