diff --git a/src/check.c b/src/check.c
index e0e4d1e1..4e456804 100644
--- a/src/check.c
+++ b/src/check.c
@@ -224,6 +224,7 @@ void trim_wires(void)
           xctx->wire[xctx->wires].prop_ptr=NULL;
           my_strdup(_ALLOC_ID_, &xctx->wire[xctx->wires].prop_ptr, xctx->wire[j].prop_ptr);
           xctx->wire[xctx->wires].bus = xctx->wire[j].bus;
+          xctx->wire[xctx->wires].flags = xctx->wire[j].flags;
           xctx->wire[xctx->wires].node=NULL;
 
           my_strdup(_ALLOC_ID_, &xctx->wire[xctx->wires].node, xctx->wire[j].node);
diff --git a/src/netlist.c b/src/netlist.c
index 3262ca9f..f5c541c5 100644
--- a/src/netlist.c
+++ b/src/netlist.c
@@ -1133,8 +1133,13 @@ int shorted_instance(int i, int lvs_ignore)
 static int skip_wire2(int i, int lvs_ignore, int mask)
 { 
   int skip = 0;
-  if(xctx->wire[i].flags & mask) skip = 1;
-  else if(lvs_ignore && (xctx->wire[i].flags & LVS_IGNORE)) skip = 1;
+  if(xctx->wire[i].flags & mask) {
+    dbg(1, "i=%d flags=%d, mask=%d\n", i, xctx->wire[i].flags, mask);
+    skip = 1;
+  } else if(lvs_ignore && (xctx->wire[i].flags & LVS_IGNORE)) {
+    dbg(1, "lvs_ignore is set, i=%d flags=%d\n", i, xctx->wire[i].flags);
+    skip = 1;
+  }
   return skip;
 }