diff --git a/qt/aqt/deckbrowser.py b/qt/aqt/deckbrowser.py
index 5dc688155..ca754e783 100644
--- a/qt/aqt/deckbrowser.py
+++ b/qt/aqt/deckbrowser.py
@@ -234,7 +234,7 @@ class DeckBrowser:
         if node.collapsed:
             prefix = "+"
         else:
-            prefix = "-"
+            prefix = "−"
 
         def indent() -> str:
             return " " * 6 * (node.level - 1)