diff --git a/sys/dev/firewire/fwohci_pci.c b/sys/dev/firewire/fwohci_pci.c
index 37bb2d848f1..56baf872b6e 100644
--- a/sys/dev/firewire/fwohci_pci.c
+++ b/sys/dev/firewire/fwohci_pci.c
@@ -241,11 +241,9 @@ fwohci_pci_init(device_t self)
 	uint16_t cmd;
 
 	cmd = pci_read_config(self, PCIR_COMMAND, 2);
-	cmd |= PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN |
-		PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN;
+	cmd |= PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
 #if 1  /* for broken hardware */
 	cmd &= ~PCIM_CMD_MWRICEN; 
-	cmd &= ~(PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN);
 #endif
 	pci_write_config(self, PCIR_COMMAND, cmd, 2);