diff --git a/src/newgrf.cpp b/src/newgrf.cpp
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -2606,6 +2606,7 @@ static ChangeInfoResult TownHouseChangeI
 						housespec->accepts_cargo[i] = INVALID_CARGO;
 						housespec->cargo_acceptance[i] = 0;
 					}
+					housespec->accepts_cargo_label[i] = CT_INVALID;
 				}
 				break;
 			}
@@ -3342,6 +3343,7 @@ static ChangeInfoResult IndustrytilesCha
 						tsp->accepts_cargo[i] = INVALID_CARGO;
 						tsp->acceptance[i] = 0;
 					}
+					tsp->accepts_cargo_label[i] = CT_INVALID;
 				}
 				break;
 			}