diff --git a/src/audio_core/hle/decoder.cpp b/src/audio_core/hle/decoder.cpp
index 06ee0bca43..a4d4be181e 100644
--- a/src/audio_core/hle/decoder.cpp
+++ b/src/audio_core/hle/decoder.cpp
@@ -55,7 +55,7 @@ std::optional<BinaryResponse> NullDecoder::ProcessRequest(const BinaryRequest& r
         return response;
     default:
         LOG_ERROR(Audio_DSP, "Got unknown binary request: {}", static_cast<u16>(request.cmd));
-        return {};
+        return std::nullopt;
     }
 };
 } // namespace AudioCore::HLE
diff --git a/src/audio_core/hle/wmf_decoder.cpp b/src/audio_core/hle/wmf_decoder.cpp
index 27899282b7..d1aa452b74 100644
--- a/src/audio_core/hle/wmf_decoder.cpp
+++ b/src/audio_core/hle/wmf_decoder.cpp
@@ -104,7 +104,7 @@ WMFDecoder::Impl::~Impl() {
 std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryRequest& request) {
     if (request.codec != DecoderCodec::AAC) {
         LOG_ERROR(Audio_DSP, "Got unknown codec {}", static_cast<u16>(request.codec));
-        return {};
+        return std::nullopt;
     }
 
     switch (request.cmd) {
@@ -123,7 +123,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryReque
     }
     default:
         LOG_ERROR(Audio_DSP, "Got unknown binary request: {}", static_cast<u16>(request.cmd));
-        return {};
+        return std::nullopt;
     }
 }
 
@@ -205,7 +205,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
     if (request.src_addr < Memory::FCRAM_PADDR ||
         request.src_addr + request.size > Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
         LOG_ERROR(Audio_DSP, "Got out of bounds src_addr {:08x}", request.src_addr);
-        return {};
+        return std::nullopt;
     }
     u8* data = memory.GetFCRAMPointer(request.src_addr - Memory::FCRAM_PADDR);
 
@@ -269,7 +269,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
             request.dst_addr_ch0 + out_streams[0].size() >
                 Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
             LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch0 {:08x}", request.dst_addr_ch0);
-            return {};
+            return std::nullopt;
         }
         std::memcpy(memory.GetFCRAMPointer(request.dst_addr_ch0 - Memory::FCRAM_PADDR),
                     out_streams[0].data(), out_streams[0].size());
@@ -280,7 +280,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
             request.dst_addr_ch1 + out_streams[1].size() >
                 Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
             LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch1 {:08x}", request.dst_addr_ch1);
-            return {};
+            return std::nullopt;
         }
         std::memcpy(memory.GetFCRAMPointer(request.dst_addr_ch1 - Memory::FCRAM_PADDR),
                     out_streams[1].data(), out_streams[1].size());
diff --git a/src/core/hle/kernel/memory.cpp b/src/core/hle/kernel/memory.cpp
index a4e77e0b29..a755507b11 100644
--- a/src/core/hle/kernel/memory.cpp
+++ b/src/core/hle/kernel/memory.cpp
@@ -234,7 +234,7 @@ std::optional<u32> MemoryRegionInfo::LinearAllocate(u32 size) {
     }
 
     // No sufficient block found
-    return {};
+    return std::nullopt;
 }
 
 void MemoryRegionInfo::Free(u32 offset, u32 size) {
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index b36228628e..e52aa0869f 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -928,7 +928,7 @@ std::optional<ProgramResult> DecompileProgram(const Pica::Shader::ProgramCode& p
         return {ProgramResult{generator.MoveShaderCode()}};
     } catch (const DecompileFail& exception) {
         LOG_INFO(HW_GPU, "Shader decompilation failed: {}", exception.what());
-        return {};
+        return std::nullopt;
     }
 }
 
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp
index 77429b887c..3172d610bb 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp
@@ -1651,7 +1651,7 @@ std::optional<ShaderDecompiler::ProgramResult> GenerateVertexShader(
         get_output_reg, config.state.sanitize_mul);
 
     if (!program_source_opt)
-        return {};
+        return std::nullopt;
 
     std::string& program_source = program_source_opt->code;