diff --git a/features.in/grub/generate.mk b/features.in/grub/generate.mk
index bc80f0fa..302248fe 100644
--- a/features.in/grub/generate.mk
+++ b/features.in/grub/generate.mk
@@ -1,7 +1,7 @@
 ifdef BUILDDIR
 
-# in deciseconds
-DEFAULT_TIMEOUT = 90
+# in seconds
+DEFAULT_TIMEOUT = 60
 
 # prepare data for grub installation;
 # see also stage1/scripts.d/01-grub
diff --git a/features.in/syslinux/generate.mk b/features.in/syslinux/generate.mk
index 8df36f4f..f88db4a4 100644
--- a/features.in/syslinux/generate.mk
+++ b/features.in/syslinux/generate.mk
@@ -1,7 +1,7 @@
 ifdef BUILDDIR
 
 # in deciseconds
-DEFAULT_TIMEOUT = 90
+DEFAULT_TIMEOUT = 600
 
 # prepare data for syslinux installation;
 # see also stage1/scripts.d/01-syslinux