diff --git a/board/common/rootfs/etc/chrony/chrony.conf b/board/common/rootfs/etc/chrony/chrony.conf
index 9db97f64c..9681c7f46 100644
--- a/board/common/rootfs/etc/chrony/chrony.conf
+++ b/board/common/rootfs/etc/chrony/chrony.conf
@@ -25,3 +25,8 @@ rtcsync
 # Step the system clock instead of slewing it if the adjustment is
 # larger than one second, but only in the first three clock updates.
 makestep 1 3
+
+# Prioritize stratum over distance in source selection.
+# Default is 0.001, which means stratum only matters when distances differ
+# by >1ms. Setting to 0.0 ensures lower stratum sources are always preferred.
+stratumweight 0.0