diff --git a/sysctl.d/12309.conf b/sysctl.d/12309.conf
index 857320d..e1b21a4 100644
--- a/sysctl.d/12309.conf
+++ b/sysctl.d/12309.conf
@@ -16,3 +16,6 @@ vm.dirty_background_bytes = 4194304
 #vm.dirty_ratio = 12
 # For old kernels <2.6.30 (default = 10)
 #vm.dirty_background_ratio = 3
+# https://github.com/zen-kernel/zen-kernel/issues/81#issuecomment-260779930
+vm.dirty_expire_centisecs = 800
+vm.dirty_writeback_centisecs = 500