diff --git a/lib/libc/rpc/getnetpath.c b/lib/libc/rpc/getnetpath.c
index ce2984bc002b..8d311369f52a 100644
--- a/lib/libc/rpc/getnetpath.c
+++ b/lib/libc/rpc/getnetpath.c
@@ -262,7 +262,7 @@ _get_next_token(char *npp, int token)
     *cp++ = '\0';		/* null-terminate token */
     /* get rid of any backslash escapes */
     ep = npp;
-    while ((np = strchr(ep, '\\')) != 0) {
+    while ((np = strchr(ep, '\\')) != NULL) {
 	if (np[1] == '\\')
 	    np++;
 	strcpy(np, (ep = &np[1]));  /* XXX: overlapping string copy */