diff --git a/SDLU/graphics/RenderWindow.cpp b/SDLU/graphics/RenderWindow.cpp
index 9baf624..310d977 100644
--- a/SDLU/graphics/RenderWindow.cpp
+++ b/SDLU/graphics/RenderWindow.cpp
@@ -219,7 +219,7 @@ namespace sdlu
     {
         size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
         void* _pixels = malloc(size);
-        std::memcpy(_pixels, pixels, size);
+        memcpy(_pixels, pixels, size);
         SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
             width, height, 32, 32 * width,
             SDL_PIXELFORMAT_RGBA8888);
@@ -231,7 +231,7 @@ namespace sdlu
     {
         size_t size = static_cast<size_t>(width) * static_cast<size_t>(height) * 4;
         void* _pixels = malloc(size);
-        std::memcpy(_pixels, pixels, size);
+        memcpy(_pixels, pixels, size);
         SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
             width, height, 32, 4 * width,
             SDL_PIXELFORMAT_RGBA8888);
@@ -270,7 +270,7 @@ namespace sdlu
     {
         size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
         void* _pixels = malloc(_size);
-        std::memcpy(_pixels, pixels, _size);
+        memcpy(_pixels, pixels, _size);
         SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
             size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA8888);
         this->SetMouseCursor(surface, clickspot);
@@ -280,7 +280,7 @@ namespace sdlu
     {
         size_t _size = static_cast<size_t>(size.x) * static_cast<size_t>(size.y) * 4;
         void* _pixels = malloc(_size);
-        std::memcpy(_pixels, pixels, _size);
+        memcpy(_pixels, pixels, _size);
         SDL_Surface* surface = SDL_CreateRGBSurfaceWithFormatFrom(_pixels,
             size.x, size.y, 32, 8 * size.x, SDL_PIXELFORMAT_RGBA32);
         this->SetMouseCursor(surface, clickspot);