diff --git a/buildroot-external/board/raspberrypi/rootfs-overlay/etc/sysctl.d/98-rpi.conf b/buildroot-external/board/raspberrypi/rootfs-overlay/etc/sysctl.d/98-rpi.conf
new file mode 100644
index 000000000..856f3b565
--- /dev/null
+++ b/buildroot-external/board/raspberrypi/rootfs-overlay/etc/sysctl.d/98-rpi.conf
@@ -0,0 +1 @@
+vm.min_free_kbytes = 16384