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-rw-r--r--src/libstore/globals.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 0af8215d1fd8..0c0a9ec544ea 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -342,6 +342,9 @@ public:
     Setting<uint64_t> maxFree{this, std::numeric_limits<uint64_t>::max(), "max-free",
         "Stop deleting garbage when free disk space is above the specified amount."};
 
+    Setting<uint64_t> minFreeCheckInterval{this, 5, "min-free-check-interval",
+        "Number of seconds between checking free disk space."};
+
     Setting<Paths> pluginFiles{this, {}, "plugin-files",
         "Plugins to dynamically load at nix initialization time."};
 };