--- a/rts/Game/WebbarBrowser.h
+++ b/rts/Game/WebbarBrowser.h
@@ -347,7 +347,7 @@
 						status = 8;
 					} else if (order.kind == 1003) {
 						command = Command(-def->id); // one unit per click; SHIFT means five to a native factory
-					} else if (!def->IsBuildingUnit() || !std::isfinite(order.x) || !std::isfinite(order.z) || order.x < 0 || order.z < 0 || order.x >= mapDims.mapx * SQUARE_SIZE || order.z >= mapDims.mapy * SQUARE_SIZE) {
+					} else if (!def->IsImmobileUnit() || !std::isfinite(order.x) || !std::isfinite(order.z) || order.x < 0 || order.z < 0 || order.x >= mapDims.mapx * SQUARE_SIZE || order.z >= mapDims.mapy * SQUARE_SIZE) {
 						status = 3;
 					} else {
 						BuildInfo build(def, buildPos, (order.options >> 8) & 3);