diff --git a/CMakeLists.txt b/CMakeLists.txt
index a51de16cb8e7762bb26382c0107c391413064dd5..09a00f1f0b518516658fcd8cd92418d8dea66257 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,8 +46,8 @@ include(GenerateExportHeader)
 include(WarningLevels)
 
 conan_or_find_package(gl REQUIRED)
-conan_or_find_package(Boost.Optional REQUIRED)
-conan_or_find_package(Boost.Signals2 REQUIRED)
+conan_or_find_package(boost_optional REQUIRED)
+conan_or_find_package(boost_signals2 REQUIRED)
 conan_or_find_package(glew REQUIRED)
 conan_or_find_package(glm REQUIRED)
 conan_or_find_package(assimp REQUIRED)
diff --git a/library/phx/material.hpp b/library/phx/material.hpp
index ac962d55da2ae2671da54bfbd5aed16268395c49..9f28d66f0e958e5757e87674d9154633daf51627 100644
--- a/library/phx/material.hpp
+++ b/library/phx/material.hpp
@@ -78,9 +78,6 @@ class PHOENIX_EXPORT Material : public Resource {
   void SetTexture(ResourcePointer<Image> image,
                   std::shared_ptr<gl::texture_2d>* texture);
 
-  ResourceProxy* ambient_image_ = nullptr;
-  ResourceProxy* diffuse_image_ = nullptr;
-  ResourceProxy* specular_image_ = nullptr;
   ResourcePointer<Image> ambient_image_{nullptr};
   ResourcePointer<Image> diffuse_image_{nullptr};
   ResourcePointer<Image> specular_image_{nullptr};