diff --git a/src/torchcodec/decoders/_core/CMakeLists.txt b/src/torchcodec/decoders/_core/CMakeLists.txt
index 285201fd..717e9adf 100644
--- a/src/torchcodec/decoders/_core/CMakeLists.txt
+++ b/src/torchcodec/decoders/_core/CMakeLists.txt
@@ -2,10 +2,9 @@ cmake_minimum_required(VERSION 3.18)
 project(TorchCodec)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-add_compile_options(-Wall -Wextra -pedantic -Werror)
 
 find_package(Torch REQUIRED)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TORCH_CXX_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TORCH_CXX_FLAGS} -Wall -Wextra -pedantic -Werror")
 find_package(Python3 ${PYTHON_VERSION} EXACT COMPONENTS Development)
 
 function(make_torchcodec_library library_name ffmpeg_target)
diff --git a/src/torchcodec/decoders/_core/CudaDevice.cpp b/src/torchcodec/decoders/_core/CudaDevice.cpp
index d0924a02..769f5f50 100644
--- a/src/torchcodec/decoders/_core/CudaDevice.cpp
+++ b/src/torchcodec/decoders/_core/CudaDevice.cpp
@@ -267,17 +267,16 @@ std::optional<AVCodecPtr> findCudaCodec(
 
   void* i = nullptr;
 
-  const AVCodecPtr c;
-  while ((c = av_codec_iterate(&i))) {
-    const AVCodecHWConfig* config;
-
-    if (c->id != codecId || !av_codec_is_decoder(c)) {
+  while ((const AVCodecPtr codec = av_codec_iterate(&i))) {
+    if (codec->id != codecId || !av_codec_is_decoder(codec)) {
       continue;
     }
 
-    for (int j = 0; config = avcodec_get_hw_config(c, j); j++) {
+    for (int j = 0;
+         (const AVCodecHWConfig* config = avcodec_get_hw_config(codec, j));
+         j++) {
       if (config->device_type == AV_HWDEVICE_TYPE_CUDA) {
-        return c;
+        return codec;
       }
     }
   }