diff --git a/src/lib/commands/marc.c b/src/lib/commands/marc.c
index 65544902..e5374297 100644
--- a/src/lib/commands/marc.c
+++ b/src/lib/commands/marc.c
@@ -160,7 +160,7 @@ march(void)
 	    continue;
 	} else {
 	    dir = chkdir(*cp++, DIR_STOP, DIR_LAST);
-	    if (dir == -1) {
+	    if (dir < 0) {
 		if (NULL != (cp = lnd_path(together, lnd, buf)))
 		    continue;
 		direrr("`%c' to stop", 0, 0);
diff --git a/src/lib/commands/navi.c b/src/lib/commands/navi.c
index 61adf5e3..2e4b3cce 100644
--- a/src/lib/commands/navi.c
+++ b/src/lib/commands/navi.c
@@ -185,7 +185,7 @@ navi(void)
 	    continue;
 	} else {
 	    dir = chkdir(*cp++, DIR_STOP, DIR_VIEW);
-	    if (dir == -1) {
+	    if (dir < 0) {
 		if (NULL != (cp = shp_path(together, shp, buf)))
 		    continue;
 		direrr("`%c' to stop", ", `%c' to view, ", 0);
diff --git a/src/lib/subs/retreat.c b/src/lib/subs/retreat.c
index f8f3f6bb..5a17ae92 100644
--- a/src/lib/subs/retreat.c
+++ b/src/lib/subs/retreat.c
@@ -243,7 +243,7 @@ retreat_ship1(struct shpstr *sp, s_char code, int orig)
 	}
 	dir = chkdir(sp->shp_rpath[0], DIR_STOP, DIR_VIEW);
 	memmove(sp->shp_rpath, sp->shp_rpath+1, sizeof(sp->shp_rpath) - 1);
-	if (dir == -1)
+	if (dir < 0)
 	    continue;
 	if (dir == DIR_STOP)
 	    stopping++;
@@ -469,7 +469,7 @@ retreat_land1(struct lndstr *lp, s_char code, int orig)
 	}
 	dir = chkdir(lp->lnd_rpath[0], DIR_STOP, DIR_VIEW);
 	memmove(lp->lnd_rpath, lp->lnd_rpath+1, sizeof(lp->lnd_rpath) - 1);
-	if (dir == -1)
+	if (dir < 0)
 	    continue;
 	if (dir == DIR_STOP)
 	    stopping++;