diff --git a/src/Interpreters/Cache/LRUFileCachePriority.h b/src/Interpreters/Cache/LRUFileCachePriority.h
index e0d7d45062a..662a76968bc 100644
--- a/src/Interpreters/Cache/LRUFileCachePriority.h
+++ b/src/Interpreters/Cache/LRUFileCachePriority.h
@@ -5,6 +5,12 @@
 #include <Interpreters/Cache/FileCacheKey.h>
 #include <Common/logger_useful.h>
 
+namespace CurrentMetrics
+{
+    extern const Metric FilesystemCacheSizeLimit;
+}
+
+
 namespace DB
 {
 
@@ -18,7 +24,9 @@ private:
     using LRUQueueIterator = typename LRUQueue::iterator;
 
 public:
-    LRUFileCachePriority(size_t max_size_, size_t max_elements_) : IFileCachePriority(max_size_, max_elements_) {}
+    LRUFileCachePriority(size_t max_size_, size_t max_elements_) : IFileCachePriority(max_size_, max_elements_) {
+        CurrentMetrics::set(CurrentMetrics::FilesystemCacheSizeLimit, max_size_);
+    }
 
     size_t getSize(const CacheGuard::Lock &) const override { return current_size; }