diff --git a/sys/dev/e1000/if_em.h b/sys/dev/e1000/if_em.h
index ed5a88013f5..a46ce2fdb6a 100644
--- a/sys/dev/e1000/if_em.h
+++ b/sys/dev/e1000/if_em.h
@@ -197,7 +197,7 @@
 #define EM_RADV		64
 
 /*
- * This parameter controls whether or not autonegotation is enabled.
+ * This parameter controls whether or not autonegotiation is enabled.
  *              0 - Disable autonegotiation
  *              1 - Enable  autonegotiation
  */