diff --git a/Source/Core/Core/IOS/ES/Formats.cpp b/Source/Core/Core/IOS/ES/Formats.cpp
index b2990f0d40..44e648603f 100644
--- a/Source/Core/Core/IOS/ES/Formats.cpp
+++ b/Source/Core/Core/IOS/ES/Formats.cpp
@@ -298,7 +298,7 @@ DiscIO::Region TMDReader::GetRegion() const
   if (GetTitleId() == Titles::SYSTEM_MENU)
     return DiscIO::GetSysMenuRegion(GetTitleVersion());
 
-  return DiscIO::RegionSwitchWii(static_cast<u8>(GetTitleId() & 0xff));
+  return DiscIO::RegionSwitch(static_cast<u8>(GetTitleId() & 0xff), DiscIO::Platform::WiiWAD);
 }
 
 std::string TMDReader::GetGameID() const
diff --git a/Source/Core/DiscIO/Enums.cpp b/Source/Core/DiscIO/Enums.cpp
index 66dcdd19d6..5318ab6b78 100644
--- a/Source/Core/DiscIO/Enums.cpp
+++ b/Source/Core/DiscIO/Enums.cpp
@@ -145,13 +145,7 @@ Country TypicalCountryForRegion(Region region)
   }
 }
 
-Region RegionSwitchGC(u8 country_code)
-{
-  Region region = RegionSwitchWii(country_code);
-  return region == Region::NTSC_K ? Region::NTSC_J : region;
-}
-
-Region RegionSwitchWii(u8 country_code)
+Region RegionSwitch(u8 country_code, Platform platform)
 {
   switch (country_code)
   {
@@ -182,7 +176,7 @@ Region RegionSwitchWii(u8 country_code)
   case 'K':
   case 'Q':
   case 'T':
-    return Region::NTSC_K;
+    return platform == Platform::GameCubeDisc ? Region::NTSC_J : Region::NTSC_K;
 
   default:
     return Region::Unknown;
diff --git a/Source/Core/DiscIO/Enums.h b/Source/Core/DiscIO/Enums.h
index 524336651d..e7f8927971 100644
--- a/Source/Core/DiscIO/Enums.h
+++ b/Source/Core/DiscIO/Enums.h
@@ -77,9 +77,7 @@ bool IsNTSC(Region region);
 
 Country TypicalCountryForRegion(Region region);
 // Avoid using this function if you can. Country codes aren't always reliable region indicators.
-Region RegionSwitchGC(u8 country_code);
-// Avoid using this function if you can. Country codes aren't always reliable region indicators.
-Region RegionSwitchWii(u8 country_code);
+Region RegionSwitch(u8 country_code, Platform platform);
 Country CountrySwitch(u8 country_code);
 
 Region GetSysMenuRegion(u16 title_version);
diff --git a/Source/Core/DiscIO/VolumeGC.cpp b/Source/Core/DiscIO/VolumeGC.cpp
index f844d329c8..71506e8393 100644
--- a/Source/Core/DiscIO/VolumeGC.cpp
+++ b/Source/Core/DiscIO/VolumeGC.cpp
@@ -95,7 +95,7 @@ Country VolumeGC::GetCountry(const Partition& partition) const
   if (region == Region::NTSC_J && (country == 'E' || country == 'K' || country == 'W'))
     return Country::Korea;
 
-  if (RegionSwitchGC(country) != region)
+  if (RegionSwitch(country, Platform::GameCubeDisc) != region)
     return TypicalCountryForRegion(region);
 
   return CountrySwitch(country);
diff --git a/Source/Core/DiscIO/VolumeWii.cpp b/Source/Core/DiscIO/VolumeWii.cpp
index 73e5b290b7..3cb5cf42c0 100644
--- a/Source/Core/DiscIO/VolumeWii.cpp
+++ b/Source/Core/DiscIO/VolumeWii.cpp
@@ -290,10 +290,10 @@ Region VolumeWii::GetRegion() const
 Country VolumeWii::GetCountry(const Partition& partition) const
 {
   // The 0 that we use as a default value is mapped to Country::Unknown and Region::Unknown
-  u8 country_byte = ReadSwapped<u8>(3, partition).value_or(0);
+  const u8 country_byte = ReadSwapped<u8>(3, partition).value_or(0);
   const Region region = GetRegion();
 
-  if (RegionSwitchWii(country_byte) != region)
+  if (RegionSwitch(country_byte, Platform::WiiDisc) != region)
     return TypicalCountryForRegion(region);
 
   return CountrySwitch(country_byte);