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-rw-r--r--src/error.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/error.h b/src/error.h
index 6dd4b0234..9c445fc48 100644
--- a/src/error.h
+++ b/src/error.h
@@ -44,6 +44,9 @@ public:
~ErrorMessageData();
ErrorMessageData(StringID summary_msg, StringID detailed_msg, uint duration = 0, int x = 0, int y = 0, const GRFFile *textref_stack_grffile = nullptr, uint textref_stack_size = 0, const uint32 *textref_stack = nullptr);
+ /* Remove the copy assignment, as the default implementation will not do the right thing. */
+ ErrorMessageData &operator=(ErrorMessageData &rhs) = delete;
+
/** Check whether error window shall display a company manager face */
bool HasFace() const { return face != INVALID_COMPANY; }