diff --git a/qt/aqt/__init__.py b/qt/aqt/__init__.py
index c97b391d3..a2e10f122 100644
--- a/qt/aqt/__init__.py
+++ b/qt/aqt/__init__.py
@@ -69,7 +69,7 @@ except ImportError as e:
 # - make preferences modal? cmd+q does wrong thing
 
 
-from aqt import addcards, browser, editcurrent  # isort:skip
+from aqt import addcards, addons, browser, editcurrent  # isort:skip
 from aqt import stats, about, preferences, mediasync  # isort:skip
 
 
@@ -77,6 +77,7 @@ class DialogManager:
 
     _dialogs: Dict[str, list] = {
         "AddCards": [addcards.AddCards, None],
+        "AddonsDialog": [addons.AddonsDialog, None],
         "Browser": [browser.Browser, None],
         "EditCurrent": [editcurrent.EditCurrent, None],
         "DeckStats": [stats.DeckStats, None],
diff --git a/qt/aqt/addons.py b/qt/aqt/addons.py
index ab65e5903..29954f78d 100644
--- a/qt/aqt/addons.py
+++ b/qt/aqt/addons.py
@@ -218,7 +218,7 @@ class AddonManager:
                 )
 
     def onAddonsDialog(self) -> None:
-        AddonsDialog(self)
+        aqt.dialogs.open("AddonsDialog", self)
 
     # Metadata
     ######################################################################
@@ -731,6 +731,8 @@ class AddonsDialog(QDialog):
 
     def reject(self) -> None:
         saveGeom(self, "addons")
+        aqt.dialogs.markClosed("AddonsDialog")
+
         return QDialog.reject(self)
 
     def name_for_addon_list(self, addon: AddonMeta) -> str: