diff --git a/Source/Core/AudioCommon/WASAPIStream.cpp b/Source/Core/AudioCommon/WASAPIStream.cpp
index dd83ddb..483a68f 100644
--- a/Source/Core/AudioCommon/WASAPIStream.cpp
+++ b/Source/Core/AudioCommon/WASAPIStream.cpp
@@ -152,7 +152,7 @@ IMMDevice* WASAPIStream::GetDeviceByName(std::string name)
                        __uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&enumerator));
 
   if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
-    return false;
+    return nullptr;
 
   IMMDeviceCollection* devices;
   result = enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &devices);
diff --git a/Source/Core/Common/StringUtil.cpp b/Source/Core/Common/StringUtil.cpp
index c85e4ae..7955c81 100644
--- a/Source/Core/Common/StringUtil.cpp
+++ b/Source/Core/Common/StringUtil.cpp
@@ -483,7 +483,7 @@ std::string UTF16ToCP(u32 code_page, std::wstring_view input)
     output.resize(size);
 
     if (size != WideCharToMultiByte(code_page, 0, input.data(), static_cast<int>(input.size()),
-                                    &output[0], static_cast<int>(output.size()), nullptr, false))
+                                    &output[0], static_cast<int>(output.size()), nullptr, nullptr))
     {
       const DWORD error_code = GetLastError();
       ERROR_LOG(COMMON, "WideCharToMultiByte Error in String '%s': %lu",