diff --git a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.cpp b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.cpp
index 91fe1874b..35c7943b4 100644
--- a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.cpp
+++ b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.cpp
@@ -197,7 +197,7 @@ void DecklistNodeTree::forEachCard(const std::function<void(InnerDecklistNode *,
  * Top-level zones take precedence, then deck-unique custom zones nested under boards
  * are resolved. Unknown names create a new top-level zone (legacy behavior).
  */
-InnerDecklistNode *DecklistNodeTree::getZoneObjFromName(const QString &zoneName) const
+InnerDecklistNode *DecklistNodeTree::getZoneObjFromName(const QString &zoneName)
 {
     for (int i = 0; i < root->size(); i++) {
         auto *node = dynamic_cast<InnerDecklistNode *>(root->at(i));
diff --git a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.h b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.h
index 5d91cd233..94fd87680 100644
--- a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.h
+++ b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_node_tree.h
@@ -144,7 +144,7 @@ public:
 
 private:
     // Helpers for traversing the tree
-    InnerDecklistNode *getZoneObjFromName(const QString &zoneName) const;
+    InnerDecklistNode *getZoneObjFromName(const QString &zoneName);
     InnerDecklistNode *findBoardZone(const QString &boardZoneName) const;
     InnerDecklistNode *findOrCreateBoardZone(const QString &boardZoneName);
 };