diff --git a/src/lib/subs/shpsub.c b/src/lib/subs/shpsub.c
index bf5f8783..4005e7fd 100644
--- a/src/lib/subs/shpsub.c
+++ b/src/lib/subs/shpsub.c
@@ -398,6 +398,7 @@ sect_has_dock(struct sctstr *sect)
 {
     switch (dchr[sect->sct_type].d_nav) {
     case NAV_02:
+    case NAV_CANAL:
 	return 1;
     default:
 	return 0;