diff --git a/src/app/ui/editor/tool_loop_impl.cpp b/src/app/ui/editor/tool_loop_impl.cpp
index 2c0756e46..960d7b5ad 100644
--- a/src/app/ui/editor/tool_loop_impl.cpp
+++ b/src/app/ui/editor/tool_loop_impl.cpp
@@ -291,7 +291,7 @@ public:
   Layer* getLayer() override { return m_layer; }
   const Cel* getCel() override { return nullptr; }
   bool isTilemapMode() override { return m_tilesMode; };
-  bool isManualTilesetMode() const override { return m_tilesetMode == TilesetMode::Manual; };
+  bool isManualTilesetMode() const override { return m_tilesetMode == TilesetMode::Manual; }
   frame_t getFrame() override { return m_frame; }
   RgbMap* getRgbMap() override {
     if (!m_rgbMap) {
@@ -977,6 +977,12 @@ public:
   void invalidateDstImage(const gfx::Region& rgn) override { }
   void copyValidDstToSrcImage(const gfx::Region& rgn) override { }
 
+  bool isManualTilesetMode() const override {
+    // Return false because this is only the preview, so we avoid
+    // creating a new tileset
+    return false;
+  }
+
   bool useMask() override { return false; }
   Mask* getMask() override { return nullptr; }
   void setMask(Mask* newMask) override { }