diff --git a/include/renderer_mtl/mtl_render_target.hpp b/include/renderer_mtl/mtl_render_target.hpp
index d3866c67..90be3bde 100644
--- a/include/renderer_mtl/mtl_render_target.hpp
+++ b/include/renderer_mtl/mtl_render_target.hpp
@@ -70,6 +70,7 @@ struct RenderTarget {
         descriptor->setStorageMode(MTL::StorageModePrivate);
         texture = device->newTexture(descriptor);
         texture->setLabel(toNSString(std::string(std::is_same<Format_t, PICA::ColorFmt>::value ? "Color" : "Depth") + " render target " + std::to_string(size.u()) + "x" + std::to_string(size.v())));
+        descriptor->release();
     }
 
     void free() {
diff --git a/include/renderer_mtl/renderer_mtl.hpp b/include/renderer_mtl/renderer_mtl.hpp
index 809833c7..2b5f214a 100644
--- a/include/renderer_mtl/renderer_mtl.hpp
+++ b/include/renderer_mtl/renderer_mtl.hpp
@@ -103,6 +103,8 @@ class RendererMTL final : public Renderer {
 		    lastColorTexture = colorTexture;
             lastDepthTexture = depthTexture;
 		}
+
+		renderPassDescriptor->release();
 	}
 
 	void commitCommandBuffer() {
diff --git a/src/core/renderer_mtl/mtl_texture.cpp b/src/core/renderer_mtl/mtl_texture.cpp
index 40ae9bf2..43ae9997 100644
--- a/src/core/renderer_mtl/mtl_texture.cpp
+++ b/src/core/renderer_mtl/mtl_texture.cpp
@@ -18,6 +18,7 @@ void Texture::allocate() {
     descriptor->setStorageMode(MTL::StorageModeShared); // TODO: use private + staging buffers?
     texture = device->newTexture(descriptor);
     texture->setLabel(toNSString("Texture " + std::to_string(size.u()) + "x" + std::to_string(size.v())));
+    descriptor->release();
 
     setNewConfig(config);
 }
@@ -43,6 +44,7 @@ void Texture::setNewConfig(u32 cfg) {
 
     samplerDescriptor->setLabel(toNSString("Sampler"));
     sampler = device->newSamplerState(samplerDescriptor);
+    samplerDescriptor->release();
 }
 
 void Texture::free() {
diff --git a/src/core/renderer_mtl/renderer_mtl.cpp b/src/core/renderer_mtl/renderer_mtl.cpp
index 2666c992..66f3af33 100644
--- a/src/core/renderer_mtl/renderer_mtl.cpp
+++ b/src/core/renderer_mtl/renderer_mtl.cpp
@@ -86,7 +86,6 @@ void RendererMTL::display() {
 
 	nextRenderPassName = "Display";
 	beginRenderPassIfNeeded(renderPassDescriptor, false, drawable->texture());
-	renderPassDescriptor->release();
 	renderCommandEncoder->setRenderPipelineState(displayPipeline);
 	renderCommandEncoder->setFragmentSamplerState(nearestSampler, 0);