diff --git a/meta-facebook/meta-greatlakes/recipes-phosphor/state/phosphor-post-code-manager_%.bbappend b/meta-facebook/meta-greatlakes/recipes-phosphor/state/phosphor-post-code-manager_%.bbappend
new file mode 100644
index 0000000..4661eec
--- /dev/null
+++ b/meta-facebook/meta-greatlakes/recipes-phosphor/state/phosphor-post-code-manager_%.bbappend
@@ -0,0 +1,5 @@
+SYS_POSTCODE_DISPLAY_PATH="/sys/bus/i2c/devices/12-000f/postcode-display-slot"
+
+EXTRA_OEMESON:append:greatlakes = " \
+    -Dpostcode-display-path=${SYS_POSTCODE_DISPLAY_PATH} \
+"