diff --git a/lib/libc/net/ether_addr.c b/lib/libc/net/ether_addr.c
index 9f3f6c4f8ca1..e8bc8ba39ddf 100644
--- a/lib/libc/net/ether_addr.c
+++ b/lib/libc/net/ether_addr.c
@@ -118,9 +118,9 @@ char
         int i;
 	static char a[18];
 
-        i = sprintf(a,"%02x:%02x:%02x:%02x:%02x:%02x",
-			n->octet[0],n->octet[1],n->octet[2],
-			n->octet[3],n->octet[4],n->octet[5]);
+        i = sprintf(a, "%02x:%02x:%02x:%02x:%02x:%02x",
+	    n->octet[0], n->octet[1], n->octet[2],
+	    n->octet[3], n->octet[4], n->octet[5]);
         if (i < 17)
                 return (NULL);
         return ((char *)&a);