diff --git a/sys/net/if_types.h b/sys/net/if_types.h
index dee71af80a5..6af3566d417 100644
--- a/sys/net/if_types.h
+++ b/sys/net/if_types.h
@@ -176,7 +176,7 @@ typedef enum {
 	IFT_A12MPPSWITCH = 0x82,	/* Avalon Parallel Processor */
 	IFT_TUNNEL	= 0x83,		/* Encapsulation interface */
 	IFT_COFFEE	= 0x84,		/* coffee pot */
-	IFT_CES		= 0x85,		/* Circiut Emulation Service */
+	IFT_CES		= 0x85,		/* Circuit Emulation Service */
 	IFT_ATMSUBINTERFACE = 0x86,	/* (x)  ATM Sub Interface */
 	IFT_L2VLAN	= 0x87,		/* Layer 2 Virtual LAN using 802.1Q */
 	IFT_L3IPVLAN	= 0x88,		/* Layer 3 Virtual LAN - IP Protocol */