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-rw-r--r--crawl-ref/source/store.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/crawl-ref/source/store.h b/crawl-ref/source/store.h
index 434c0cd74d..3f1b0b0ffe 100644
--- a/crawl-ref/source/store.h
+++ b/crawl-ref/source/store.h
@@ -265,7 +265,7 @@ public:
store_flags set_default_flags(store_flags flags);
store_flags unset_default_flags(store_flags flags);
store_val_type get_type() const;
- bool exists(const std::string key) const;
+ bool exists(const std::string &key) const;
void assert_validity() const;
// NOTE: If the const versions of get_value() or [] are given a