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-rw-r--r--src/fileio_func.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/fileio_func.h b/src/fileio_func.h
index d85c8630c..449ba51fe 100644
--- a/src/fileio_func.h
+++ b/src/fileio_func.h
@@ -67,7 +67,7 @@ const char *FioTarFirstDir(const char *tarname, Subdirectory subdir);
void FioTarAddLink(const char *src, const char *dest, Subdirectory subdir);
bool ExtractTar(const char *tar_filename, Subdirectory subdir);
-extern char *_personal_dir; ///< custom directory for personal settings, saves, newgrf, etc.
+extern const char *_personal_dir; ///< custom directory for personal settings, saves, newgrf, etc.
/** Helper for scanning for files with a given name */
class FileScanner {