diff --git a/3rd/box2d/CMakeLists.txt b/3rd/box2d/CMakeLists.txt
index eddff030..16dd561c 100644
--- a/3rd/box2d/CMakeLists.txt
+++ b/3rd/box2d/CMakeLists.txt
@@ -16,8 +16,6 @@ aux_source_directory(${CMAKE_CURRENT_LIST_DIR}/src BOX2D_BINDINGS_SRC)
 
 set(CMAKE_CXX_FLAGS_RELEASE "-O2")
 
-set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-
 add_library(
     box2d
     STATIC
diff --git a/CMakeLists.txt b/CMakeLists.txt
index da08891b..1eddf04b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,17 +21,14 @@ if(MSVC)
     add_compile_options("/utf-8")
 endif()
 
-if(NOT CMAKE_BUILD_TYPE)
-  set(CMAKE_BUILD_TYPE Release)
-endif()
-
 set(CMAKE_CXX_FLAGS_RELEASE "-O2")
 
 include_directories(${CMAKE_CURRENT_LIST_DIR}/include)
 
 aux_source_directory(${CMAKE_CURRENT_LIST_DIR}/src POCKETPY_SRC)
 
-option(PK_USE_BOX2D "Use Box2D" ON)
+option(PK_USE_BOX2D "Use Box2D" OFF)
+
 if(PK_USE_BOX2D)
     add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/3rd/box2d)
     include_directories(${CMAKE_CURRENT_LIST_DIR}/3rd/box2d/include)
diff --git a/docs/modules/box2d.md b/docs/modules/box2d.md
index eaf78fac..86bcf13e 100644
--- a/docs/modules/box2d.md
+++ b/docs/modules/box2d.md
@@ -7,12 +7,9 @@ label: box2d
 
 ## Setup
 
-`box2d` module will be enabled **by default** for CMake users.
+You can set option `PK_USE_BOX2D` to `ON` in CMakeLists.txt to enable `box2d` module.
 All platforms are supported, including desktop, mobile and web.
 
-You can set option `PK_USE_BOX2D` to `OFF` in CMakeLists.txt
-if you don't want to use it.
-
 ## Overview
 
 The `box2d` module in pkpy provides a high-level, also simplified, interface to Box2D engine, which is suitable for most use cases.