diff --git a/src/app/puzzle/undocommands/vpundopiecemove.cpp b/src/app/puzzle/undocommands/vpundopiecemove.cpp
index d1ffbbc27..fb2ca8fc9 100644
--- a/src/app/puzzle/undocommands/vpundopiecemove.cpp
+++ b/src/app/puzzle/undocommands/vpundopiecemove.cpp
@@ -253,7 +253,7 @@ auto VPUndoPiecesMove::Layout() const -> VPLayoutPtr
         }
     }
 
-    return nullptr;
+    return {};
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -268,7 +268,7 @@ auto VPUndoPiecesMove::Sheet() const  -> VPSheetPtr
         }
     }
 
-    return nullptr;
+    return {};
 }
 
 //---------------------------------------------------------------------------------------------------------------------