diff --git a/src/group_gui.cpp b/src/group_gui.cpp
--- a/src/group_gui.cpp
+++ b/src/group_gui.cpp
@@ -575,6 +575,7 @@ static void GroupWndProc(Window *w, Wind
 
 					if (v->IsValid()) {
 						SetObjectToPlaceWnd(v->GetImage(DIR_W), GetVehiclePalette(v), VHM_DRAG, w);
+						_cursor.vehchain = true;
 					}
 
 					SetWindowDirty(w);
@@ -687,6 +688,7 @@ static void GroupWndProc(Window *w, Wind
 					break;
 				}
 			}
+			_cursor.vehchain = false;
 			break;
 		}