diff --git a/source/blender/src/editobject.c b/source/blender/src/editobject.c
index 1b8ed2d6d79..b3fdef709ec 100644
--- a/source/blender/src/editobject.c
+++ b/source/blender/src/editobject.c
@@ -6163,8 +6163,8 @@ void transform(int mode)
 	tottrans= 0;
 
 	/* undo after transform, since it's storing current situations */
-	//if(canceled==0 && G.obedit==NULL) 
-	//	BIF_write_undo(transform_mode_to_string(mode));
+	if(canceled==0 && G.obedit==NULL) 
+		BIF_write_undo(transform_mode_to_string(mode));
 }
 
 void std_rmouse_transform(void (*xf_func)(int))
diff --git a/source/blender/src/interface.c b/source/blender/src/interface.c
index 7e39dff0f17..29f8a805153 100644
--- a/source/blender/src/interface.c
+++ b/source/blender/src/interface.c
@@ -3091,7 +3091,7 @@ static int ui_do_block(uiBlock *block, uiEvent *uevent)
 					if(inside || uevent->event!=LEFTMOUSE) {
 						butevent= ui_do_button(block, but, uevent);
 						
-						// if(but->type!=BLOCK) BIF_write_undo(but->str);
+						if(but->type!=BLOCK) BIF_write_undo(but->str);
 
 						if(butevent) addqueue(block->winq, UI_BUT_EVENT, (short)butevent);
 
diff --git a/source/blender/src/space.c b/source/blender/src/space.c
index daeeb6fff19..f99ed5032a9 100644
--- a/source/blender/src/space.c
+++ b/source/blender/src/space.c
@@ -1439,12 +1439,12 @@ void winqreadview3dspace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 					else if(G.f & G_VERTEXPAINT)
 						vpaint_undo();
 					else
-						single_user();
-						//BIF_undo_step(1);
+						// single_user();
+						BIF_undo_step(1);
 				}
 				else if(G.qual==LR_SHIFTKEY)
-					// BIF_undo_step(-1);
-					;
+					BIF_undo_step(-1);
+					
 				break;
 			case VKEY:
 				ob= OBACT;