Index: src/sdk/projectmanager.cpp
===================================================================
--- src/sdk/projectmanager.cpp    (revision 5731)
+++ src/sdk/projectmanager.cpp    (working copy)
@@ -157,6 +157,7 @@
 
     EVT_TREE_ITEM_ACTIVATED(ID_ProjectManager, ProjectManager::OnProjectFileActivated)
     EVT_TREE_ITEM_RIGHT_CLICK(ID_ProjectManager, ProjectManager::OnTreeItemRightClick)
+    EVT_TREE_KEY_DOWN(ID_ProjectManager, ProjectManager::OnKeyDown)
     EVT_COMMAND_RIGHT_CLICK(ID_ProjectManager, ProjectManager::OnRightClick)
 
     EVT_AUINOTEBOOK_TAB_RIGHT_UP(idNB, ProjectManager::OnTabContextMenu)
@@ -2089,14 +2090,17 @@
     }
     else if (event.GetId() == idMenuRemoveFilePopup)
     {
-        // remove single file
-        prj->BeginRemoveFiles();
-        RemoveFileFromProject(ftd->GetProjectFile(), prj);
-        prj->CalculateCommonTopLevelPath();
-        if (prj->GetCommonTopLevelPath() == oldpath)
-            m_pTree->Delete(sel);
-        prj->EndRemoveFiles();
-        RebuildTree();
+        if(ftd->GetProjectFile())
+        {
+            // remove single file
+            prj->BeginRemoveFiles();
+            RemoveFileFromProject(ftd->GetProjectFile(), prj);
+            prj->CalculateCommonTopLevelPath();
+            if (prj->GetCommonTopLevelPath() == oldpath)
+                m_pTree->Delete(sel);
+            prj->EndRemoveFiles();
+            RebuildTree();
+        }
     }
     else if (event.GetId() == idMenuRemoveFolderFilesPopup)
     {
@@ -2843,3 +2847,14 @@
         CloseWorkspace();
     }
 }
+
+void ProjectManager::OnKeyDown(wxTreeEvent& event)
+{
+    const wxKeyEvent& key_event = event.GetKeyEvent();
+
+    if(key_event.GetKeyCode() == WXK_DELETE || key_event.GetKeyCode() == WXK_NUMPAD_DELETE)
+    {
+        wxCommandEvent command(0, idMenuRemoveFilePopup);
+        OnRemoveFileFromProject(command);
+    }
+}
Index: src/include/projectmanager.h
===================================================================
--- src/include/projectmanager.h    (revision 5731)
+++ src/include/projectmanager.h    (working copy)
@@ -478,6 +478,7 @@
         void OnUpdateUI(wxUpdateUIEvent& event);
         void OnIdle(wxIdleEvent& event);
         void OnAppDoneStartup(CodeBlocksEvent& event);
+        void OnKeyDown(wxTreeEvent& event);
 
         void DoOpenSelectedFile();
         void DoOpenFile(ProjectFile* pf, const wxString& filename);