diff --git a/drivers/pcmcia/o2micro.h b/drivers/pcmcia/o2micro.h
index 5554015a7813c74f7c84352aacc190345dde6da6..72188c462c9cc6222b82ff8e79c87e35b3731201 100644
--- a/drivers/pcmcia/o2micro.h
+++ b/drivers/pcmcia/o2micro.h
@@ -48,6 +48,9 @@
 #ifndef PCI_DEVICE_ID_O2_6812
 #define PCI_DEVICE_ID_O2_6812		0x6872
 #endif
+#ifndef PCI_DEVICE_ID_O2_6933
+#define PCI_DEVICE_ID_O2_6933           0x6933
+#endif
 
 /* Additional PCI configuration registers */
 
@@ -154,6 +157,7 @@ static int o2micro_override(struct yenta_socket *socket)
 		case PCI_DEVICE_ID_O2_6812:
 		case PCI_DEVICE_ID_O2_6832:
 		case PCI_DEVICE_ID_O2_6836:
+ 		case PCI_DEVICE_ID_O2_6933:
 			dev_printk(KERN_INFO, &socket->dev->dev,
 				   "Yenta O2: old bridge, disabling read "
 				   "prefetch/write burst\n");