diff --git a/src/app/ui/editor/tool_loop_impl.cpp b/src/app/ui/editor/tool_loop_impl.cpp
index 9d0c9ab78..5d661e7fc 100644
--- a/src/app/ui/editor/tool_loop_impl.cpp
+++ b/src/app/ui/editor/tool_loop_impl.cpp
@@ -247,9 +247,8 @@ public:
   RgbMap* getRgbMap() override {
     if (!m_rgbMap) {
       Sprite::RgbMapFor forLayer =
-        ((!m_layer ||
-          m_layer->isBackground() ||
-          m_sprite->pixelFormat() == IMAGE_RGB) ?
+        (((m_layer && m_layer->isBackground()) ||
+          (m_sprite->pixelFormat() == IMAGE_RGB)) ?
          Sprite::RgbMapFor::OpaqueLayer:
          Sprite::RgbMapFor::TransparentLayer);
       m_rgbMap = m_sprite->rgbMap(m_frame, forLayer);