diff --git a/library/cpp/yt/compact_containers/compact_flat_map.h b/library/cpp/yt/compact_containers/compact_flat_map.h
index d4e936684302..49c8628c46ca 100644
--- a/library/cpp/yt/compact_containers/compact_flat_map.h
+++ b/library/cpp/yt/compact_containers/compact_flat_map.h
@@ -20,7 +20,7 @@ concept CComparisonAllowed = std::same_as<T, U> || CHasIsTransparentFlag<TCompar
 
 ///////////////////////////////////////////////////////////////////////////////
 
-//! A flat map implementation over TCompactTValueector that tries to keep data inline.
+//! A flat map implementation over TCompactVector that tries to keep data inline.
 /*!
  *  Similarly to SmallSet, this is implemented via binary search over a sorted
  *  vector. Unlike SmallSet, however, this one never falls back to std::map (or
diff --git a/library/cpp/yt/string/format-inl.h b/library/cpp/yt/string/format-inl.h
index 83d61986745f..22da423f8932 100644
--- a/library/cpp/yt/string/format-inl.h
+++ b/library/cpp/yt/string/format-inl.h
@@ -11,6 +11,7 @@
 #include <library/cpp/yt/assert/assert.h>
 
 #include <library/cpp/yt/compact_containers/compact_vector.h>
+#include <library/cpp/yt/compact_containers/compact_flat_map.h>
 
 #include <library/cpp/yt/containers/enum_indexed_array.h>
 
@@ -163,6 +164,10 @@ template <class... Ts>
 constexpr bool CKnownKVRange<THashMap<Ts...>> = true;
 template <class... Ts>
 constexpr bool CKnownKVRange<THashMultiMap<Ts...>> = true;
+template <class... Ts>
+constexpr bool CKnownKVRange<TCompactFlatMap<Ts...>> = true;
+template <class K, class V, size_t N>
+constexpr bool CKnownKVRange<TCompactFlatMap<K, V, N>> = true;
 
 // TODO(arkady-e1ppa): Uncomment me when
 // https://github.com/llvm/llvm-project/issues/58534 is shipped.
diff --git a/library/cpp/yt/string/unittests/format_ut.cpp b/library/cpp/yt/string/unittests/format_ut.cpp
index f783efcf11ab..e2e23c737c2c 100644
--- a/library/cpp/yt/string/unittests/format_ut.cpp
+++ b/library/cpp/yt/string/unittests/format_ut.cpp
@@ -70,6 +70,7 @@ static_assert(CFormattable<std::multimap<int, int>>);
 static_assert(CFormattable<THashSet<int>>);
 static_assert(CFormattable<THashMap<int, int>>);
 static_assert(CFormattable<THashMultiSet<int>>);
+static_assert(CFormattable<TCompactFlatMap<int, int, 2>>);
 static_assert(CFormattable<std::pair<int, int>>);
 static_assert(CFormattable<std::optional<int>>);
 static_assert(CFormattable<TDuration>);