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-rw-r--r--src/rail.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/rail.cpp b/src/rail.cpp
index 663753e9f..21ae80661 100644
--- a/src/rail.cpp
+++ b/src/rail.cpp
@@ -181,7 +181,7 @@ bool HasRailtypeAvail(const CompanyID company, const RailType railtype)
bool ValParamRailtype(const RailType rail)
{
- return HasRailtypeAvail(_current_company, rail);
+ return rail < RAILTYPE_END && HasRailtypeAvail(_current_company, rail);
}
RailType GetBestRailtype(const CompanyID company)