diff --git a/src/commonlib/include/commonlib/console/post_codes.h b/src/commonlib/include/commonlib/console/post_codes.h
index 8ab069bf1c..d838815fa2 100644
--- a/src/commonlib/include/commonlib/console/post_codes.h
+++ b/src/commonlib/include/commonlib/console/post_codes.h
@@ -65,6 +65,20 @@
  */
 #define POST_ENTRY_C_START			0x13
 
+/**
+ * \brief Entry into pci_scan_bus
+ *
+ * Entered pci_scan_bus()
+ */
+#define POST_ENTER_PCI_SCAN_BUS			0x24
+
+/**
+ * \brief Entry into pci_scan_bus
+ *
+ * Entered pci_scan_bus()
+ */
+#define POST_EXIT_PCI_SCAN_BUS			0x25
+
 /**
  * \brief Pre-memory init preparation start
  *
diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index 16c31ea221..865158644c 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -1423,7 +1423,7 @@ void pci_scan_bus(struct bus *bus, unsigned int min_devfn,
 		max_devfn=0xff;
 	}
 
-	post_code(0x24);
+	post_code(POST_ENTER_PCI_SCAN_BUS);
 
 	if (pci_bus_only_one_child(bus))
 		max_devfn = MIN(max_devfn, 0x07);
@@ -1464,8 +1464,6 @@ void pci_scan_bus(struct bus *bus, unsigned int min_devfn,
 		}
 	}
 
-	post_code(0x25);
-
 	/*
 	 * Warn if any leftover static devices are found.
 	 * There's probably a problem in devicetree.cb.
@@ -1516,7 +1514,7 @@ void pci_scan_bus(struct bus *bus, unsigned int min_devfn,
 	 * side of any bridges that may be on this bus plus any devices.
 	 * Return how far we've got finding sub-buses.
 	 */
-	post_code(0x55);
+	post_code(POST_EXIT_PCI_SCAN_BUS);
 }
 
 typedef enum {