diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 8ade9639cc..9b4da98a89 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -426,6 +426,8 @@ void Station::UpdateVirtCoord()
 	SetDParam(0, this->index);
 	SetDParam(1, this->facilities);
 	this->sign.UpdatePosition(pt.x, pt.y, STR_VIEWPORT_STATION);
+
+	InvalidateWindow(WC_STATION_VIEW, this->index);
 }
 
 /** Update the virtual coords needed to draw the station sign for all stations. */
diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
index 5d9d5328b8..d15cead5e7 100644
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -338,6 +338,8 @@ void Town::UpdateVirtCoord()
 	SetDParam(1, this->population);
 	this->sign.UpdatePosition(pt.x, pt.y - 24,
 		_settings_client.gui.population_in_label ? STR_VIEWPORT_TOWN_POP : STR_VIEWPORT_TOWN);
+
+	InvalidateWindow(WC_TOWN_VIEW, this->index);
 }
 
 /** Update the virtual coords needed to draw the town sign for all towns. */