diff --git a/contrib/lz4-cmake/CMakeLists.txt b/contrib/lz4-cmake/CMakeLists.txt
index 68662b12c85..94def029410 100644
--- a/contrib/lz4-cmake/CMakeLists.txt
+++ b/contrib/lz4-cmake/CMakeLists.txt
@@ -11,7 +11,7 @@ set (SRCS
 add_library (_lz4 ${SRCS})
 add_library (ch_contrib::lz4 ALIAS _lz4)
 
-target_compile_definitions (_lz4 PUBLIC LZ4_DISABLE_DEPRECATE_WARNINGS=1 USE_XXHASH=1)
+target_compile_definitions (_lz4 PUBLIC LZ4_DISABLE_DEPRECATE_WARNINGS=1)
 if (SANITIZE STREQUAL "undefined")
     target_compile_options (_lz4 PRIVATE -fno-sanitize=undefined)
 endif ()
diff --git a/src/Functions/FunctionsHashing.cpp b/src/Functions/FunctionsHashing.cpp
index 3f334e9c302..cbafd4bcec2 100644
--- a/src/Functions/FunctionsHashing.cpp
+++ b/src/Functions/FunctionsHashing.cpp
@@ -37,9 +37,7 @@ void registerFunctionsHashing(FunctionFactory & factory)
     factory.registerFunction<FunctionMurmurHash3_128>();
     factory.registerFunction<FunctionGccMurmurHash>();
 
-#if USE_XXHASH
     factory.registerFunction<FunctionXxHash32>();
     factory.registerFunction<FunctionXxHash64>();
-#endif
 }
 }
diff --git a/src/Functions/FunctionsHashing.h b/src/Functions/FunctionsHashing.h
index a42e6b0bf65..88a0e9524b3 100644
--- a/src/Functions/FunctionsHashing.h
+++ b/src/Functions/FunctionsHashing.h
@@ -12,10 +12,7 @@
 #include <Common/SipHash.h>
 #include <Common/typeid_cast.h>
 #include <Common/HashTable/Hash.h>
-
-#if USE_XXHASH
-#    include <xxhash.h>
-#endif
+#include <xxhash.h>
 
 #if USE_SSL
 #    include <openssl/md4.h>
@@ -551,9 +548,6 @@ struct ImplMetroHash64
     static constexpr bool use_int_hash_for_pods = true;
 };
 
-
-#if USE_XXHASH
-
 struct ImplXxHash32
 {
     static constexpr auto name = "xxHash32";
@@ -574,7 +568,6 @@ struct ImplXxHash32
     static constexpr bool use_int_hash_for_pods = false;
 };
 
-
 struct ImplXxHash64
 {
     static constexpr auto name = "xxHash64";
@@ -592,9 +585,6 @@ struct ImplXxHash64
     static constexpr bool use_int_hash_for_pods = false;
 };
 
-#endif
-
-
 template <typename Impl>
 class FunctionStringHashFixedString : public IFunction
 {
@@ -1413,9 +1403,7 @@ using FunctionJavaHash = FunctionAnyHash<JavaHashImpl>;
 using FunctionJavaHashUTF16LE = FunctionAnyHash<JavaHashUTF16LEImpl>;
 using FunctionHiveHash = FunctionAnyHash<HiveHashImpl>;
 
-#if USE_XXHASH
-    using FunctionXxHash32 = FunctionAnyHash<ImplXxHash32>;
-    using FunctionXxHash64 = FunctionAnyHash<ImplXxHash64>;
-#endif
+using FunctionXxHash32 = FunctionAnyHash<ImplXxHash32>;
+using FunctionXxHash64 = FunctionAnyHash<ImplXxHash64>;
 
 }
diff --git a/src/Storages/System/StorageSystemBuildOptions.generated.cpp.in b/src/Storages/System/StorageSystemBuildOptions.generated.cpp.in
index a14f4996d52..5c25322b4f0 100644
--- a/src/Storages/System/StorageSystemBuildOptions.generated.cpp.in
+++ b/src/Storages/System/StorageSystemBuildOptions.generated.cpp.in
@@ -33,7 +33,6 @@ const char * auto_config_build[]
     "USE_RDKAFKA", "@USE_RDKAFKA@",
     "USE_CAPNP", "@USE_CAPNP@",
     "USE_BASE64", "@USE_BASE64@",
-    "USE_XXHASH", "@USE_XXHASH@",
     "USE_HDFS", "@USE_HDFS@",
     "USE_SNAPPY", "@USE_SNAPPY@",
     "USE_PARQUET", "@USE_PARQUET@",