diff --git a/README.md b/README.md
index cd86f97..62986ea 100644
--- a/README.md
+++ b/README.md
@@ -134,6 +134,10 @@ if (!ret) {
 * `TINYGLTF_NO_EXTERNAL_IMAGE` : Do not try to load external image file. This option woulde be helpful if you do not want load image file during glTF parsing.
 * `TINYGLTF_ANDROID_LOAD_FROM_ASSETS`: Load all files from packaged app assets instead of the regular file system. **Note:** You must pass a valid asset manager from your android app to `tinygltf::asset_manager` beforehand.
 * `TINYGLTF_ENABLE_DRACO`: Enable Draco compression. User must provide include path and link correspnding libraries in your project file.
+* `TINYGLTF_NO_INCLUDE_JSON `: Disable including `json.hpp` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
+* `TINYGLTF_NO_INCLUDE_STB_IMAGE `: Disable including `stb_image.h` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
+* `TINYGLTF_NO_INCLUDE_STB_IMAGE_WRITE `: Disable including `stb_image_write.h` from within `tiny_gltf.h` because it has been already included before or you want to include it using custom path before including `tiny_gltf.h`.
+
 
 ### Saving gltTF 2.0 model
 * [ ] Buffers.
diff --git a/tiny_gltf.h b/tiny_gltf.h
index 68df57e..ed9e497 100644
--- a/tiny_gltf.h
+++ b/tiny_gltf.h
@@ -1079,7 +1079,9 @@ class TinyGLTF {
 #endif
 #endif
 
+#ifndef TINYGLTF_NO_INCLUDE_JSON
 #include "json.hpp"
+#endif
 
 #ifdef TINYGLTF_ENABLE_DRACO
 #include "draco/core/decoder_buffer.h"
@@ -1087,12 +1089,16 @@ class TinyGLTF {
 #endif
 
 #ifndef TINYGLTF_NO_STB_IMAGE
+#ifndef TINYGLTF_NO_INCLUDE_STB_IMAGE
 #include "stb_image.h"
 #endif
+#endif
 
 #ifndef TINYGLTF_NO_STB_IMAGE_WRITE
+#ifndef TINYGLTF_NO_INCLUDE_STB_IMAGE_WRITE
 #include "stb_image_write.h"
 #endif
+#endif
 
 #ifdef __clang__
 #pragma clang diagnostic pop