diff --git a/kernel-src/include/kernel/pci.h b/kernel-src/include/kernel/pci.h
index caaa5f5e..8c1a68be 100644
--- a/kernel-src/include/kernel/pci.h
+++ b/kernel-src/include/kernel/pci.h
@@ -21,8 +21,10 @@
 // 1 byte fields
 #define PCI_CONFIG_REVISION 0x8
 #define PCI_CONFIG_PROGIF 0x9
+	#define PCI_PROGIF_STORAGE_SATA_AHCI 0x1
 #define PCI_CONFIG_SUBCLASS 0xa
 	#define PCI_SUBCLASS_STORAGE_NVM 0x8
+	#define PCI_SUBCLASS_STORAGE_SATA 0x6
 #define PCI_CONFIG_CLASS 0xb
 	#define PCI_CLASS_STORAGE 0x1
 #define PCI_CONFIG_HEADERTYPE 0xe