diff --git a/src/engine/BUILD.bazel b/src/engine/BUILD.bazel
index f85d649ed..0421b6202 100644
--- a/src/engine/BUILD.bazel
+++ b/src/engine/BUILD.bazel
@@ -362,9 +362,6 @@ mozc_cc_library(
     name = "minimal_engine",
     srcs = ["minimal_engine.cc"],
     hdrs = ["minimal_engine.h"],
-    visibility = [
-        "//:__subpackages__",
-    ],
     deps = [
         ":engine_interface",
         ":modules",
diff --git a/src/ios/ios_engine.cc b/src/ios/ios_engine.cc
index da2cf9926..821427a1f 100644
--- a/src/ios/ios_engine.cc
+++ b/src/ios/ios_engine.cc
@@ -43,7 +43,6 @@
 #include "data_manager/data_manager.h"
 #include "engine/engine.h"
 #include "engine/engine_interface.h"
-#include "engine/minimal_engine.h"
 #include "protocol/commands.pb.h"
 #include "protocol/user_dictionary_storage.pb.h"
 #include "session/session_handler.h"
@@ -66,13 +65,13 @@ std::unique_ptr<EngineInterface> CreateMobileEngine(
     LOG(ERROR)
         << "Fallback to MinimalEngine due to data manager creation error: "
         << data_manager.status();
-    return std::make_unique<MinimalEngine>();
+    return Engine::CreateEngine();
   }
   auto engine = Engine::CreateMobileEngine(*std::move(data_manager));
   if (!engine.ok()) {
     LOG(ERROR) << "Failed to create an engine: " << engine.status()
                << ". Fallback to MinimalEngine";
-    return std::make_unique<MinimalEngine>();
+    return Engine::CreateEngine();
   }
   return *std::move(engine);
 }
diff --git a/src/session/BUILD.bazel b/src/session/BUILD.bazel
index 4913e5592..4d699bb8a 100644
--- a/src/session/BUILD.bazel
+++ b/src/session/BUILD.bazel
@@ -365,7 +365,6 @@ mozc_cc_test(
         "//engine",
         "//engine:engine_interface",
         "//engine:engine_mock",
-        "//engine:minimal_engine",
         "//engine:mock_data_engine_factory",
         "//engine:modules",
         "//engine:supplemental_model_interface",
diff --git a/src/session/session_handler_test.cc b/src/session/session_handler_test.cc
index d27ab5caf..c3b8b0de3 100644
--- a/src/session/session_handler_test.cc
+++ b/src/session/session_handler_test.cc
@@ -55,7 +55,6 @@
 #include "engine/engine.h"
 #include "engine/engine_interface.h"
 #include "engine/engine_mock.h"
-#include "engine/minimal_engine.h"
 #include "engine/mock_data_engine_factory.h"
 #include "engine/modules.h"
 #include "protocol/commands.pb.h"
diff --git a/src/session/session_test.gyp b/src/session/session_test.gyp
index 783104de6..16e6ec249 100644
--- a/src/session/session_test.gyp
+++ b/src/session/session_test.gyp
@@ -105,7 +105,6 @@
         '<(mozc_oss_src_dir)/base/base_test.gyp:clock_mock',
         '<(mozc_oss_src_dir)/data_manager/oss/oss_data_manager.gyp:oss_data_manager',
         '<(mozc_oss_src_dir)/data_manager/testing/mock_data_manager.gyp:mock_data_manager',
-        '<(mozc_oss_src_dir)/engine/engine.gyp:minimal_engine',
         '<(mozc_oss_src_dir)/testing/testing.gyp:gtest_main',
         '<(mozc_oss_src_dir)/testing/testing.gyp:mozctest',
         '<(mozc_oss_src_dir)/usage_stats/usage_stats_test.gyp:usage_stats_testing_util',