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-rw-r--r--src/cargotype.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cargotype.cpp b/src/cargotype.cpp
index d89972c31..bea8edd65 100644
--- a/src/cargotype.cpp
+++ b/src/cargotype.cpp
@@ -64,6 +64,7 @@ bool CargoSpec::IsValid() const
CargoID GetCargoIDByLabel(CargoLabel cl)
{
for (CargoID c = 0; c < lengthof(_cargo); c++) {
+ if (_cargo[c].bitnum == INVALID_CARGO) continue;
if (_cargo[c].label == cl) return c;
}