Don't redraw label parts unnecessarily

1 files changed, 1 insertions, 1 deletions

diff --git a/blocks.js b/blocks.js
index d2a395a..6c10354 100644
--- a/blocks.js
+++ b/blocks.js
@@ -2062,7 +2062,7 @@ BlockMorph.prototype.setSpec = function (spec) {
         }
         part = myself.labelPart(word);
         myself.add(part);
-        if (!(part instanceof CommandSlotMorph)) {
+        if (!(part instanceof CommandSlotMorph || part instanceof StringMorph)) {
             part.drawNew();
         }
         if (part instanceof RingMorph) {