diff --git a/Filtration/ViewModels/LootFilterScriptViewModel.cs b/Filtration/ViewModels/LootFilterScriptViewModel.cs
index 7a75a58..44f3a62 100644
--- a/Filtration/ViewModels/LootFilterScriptViewModel.cs
+++ b/Filtration/ViewModels/LootFilterScriptViewModel.cs
@@ -42,7 +42,7 @@ namespace Filtration.ViewModels
             AddBlockCommand = new RelayCommand(OnAddBlockCommand);
             AddSectionCommand = new RelayCommand(OnAddSectionCommand, () => SelectedBlockViewModel != null);
             CopyBlockCommand = new RelayCommand(OnCopyBlockCommand, () => SelectedBlockViewModel != null);
-            PasteBlockCommand = new RelayCommand(OnPasteBlockCommand);
+            PasteBlockCommand = new RelayCommand(OnPasteBlockCommand, () => SelectedBlockViewModel != null);
             _lootFilterBlockViewModelFactory = lootFilterBlockViewModelFactory;
             _blockTranslator = blockTranslator;
             LootFilterBlockViewModels = new ObservableCollection<ILootFilterBlockViewModel>();
diff --git a/Filtration/ViewModels/MainWindowViewModel.cs b/Filtration/ViewModels/MainWindowViewModel.cs
index 3b4cbf2..f174cd0 100644
--- a/Filtration/ViewModels/MainWindowViewModel.cs
+++ b/Filtration/ViewModels/MainWindowViewModel.cs
@@ -48,7 +48,7 @@ namespace Filtration.ViewModels
             SaveScriptAsCommand = new RelayCommand(OnSaveScriptAsCommand, () => CurrentScriptViewModel != null);
             CopyScriptCommand = new RelayCommand(OnCopyScriptCommand, () => CurrentScriptViewModel != null);
             CopyBlockCommand = new RelayCommand(OnCopyBlockCommand, () => CurrentScriptViewModel != null && CurrentScriptViewModel.SelectedBlockViewModel != null);
-            PasteCommand = new RelayCommand(OnPasteCommand, () => CurrentScriptViewModel != null);
+            PasteCommand = new RelayCommand(OnPasteCommand, () => CurrentScriptViewModel != null && CurrentScriptViewModel.SelectedBlockViewModel != null);
             NewScriptCommand = new RelayCommand(OnNewScriptCommand);
             CloseScriptCommand = new RelayCommand<ILootFilterScriptViewModel>(OnCloseScriptCommand, v => CurrentScriptViewModel != null);
             ReplaceColorsCommand = new RelayCommand(OnReplaceColorsCommand, () => CurrentScriptViewModel != null);