diff --git a/installer/Subtitle_Edit_installer.iss b/installer/Subtitle_Edit_installer.iss
index 866b879da..61ea56155 100644
--- a/installer/Subtitle_Edit_installer.iss
+++ b/installer/Subtitle_Edit_installer.iss
@@ -268,7 +268,7 @@ Source: {#bindir}\Languages\tr-TR.xml;             DestDir: {app}\Languages;
 Source: {#bindir}\Languages\uk-UA.xml;             DestDir: {app}\Languages;                          Flags: ignoreversion; Components: translations
 Source: {#bindir}\Languages\vi-VN.xml;             DestDir: {app}\Languages;                          Flags: ignoreversion; Components: translations
 Source: {#bindir}\Languages\zh-Hans.xml;           DestDir: {app}\Languages;                          Flags: ignoreversion; Components: translations
-Source: {#bindir}\Languages\zh-tw.xml;             DestDir: {app}\Languages;                          Flags: ignoreversion; Components: translations
+Source: {#bindir}\Languages\zh-TW.xml;             DestDir: {app}\Languages;                          Flags: ignoreversion; Components: translations
 #endif
 
 Source: {#bindir}\SubtitleEdit.exe;                DestDir: {app};                                    Flags: ignoreversion; Components: main
@@ -375,7 +375,7 @@ Type: files;      Name: {app}\Languages\tr-TR.xml;      Check: not IsComponentSe
 Type: files;      Name: {app}\Languages\uk-UA.xml;      Check: not IsComponentSelected('translations') and IsUpgrade()
 Type: files;      Name: {app}\Languages\vi-VN.xml;      Check: not IsComponentSelected('translations') and IsUpgrade()
 Type: files;      Name: {app}\Languages\zh-Hans.xml;    Check: not IsComponentSelected('translations') and IsUpgrade()
-Type: files;      Name: {app}\Languages\zh-tw.xml;      Check: not IsComponentSelected('translations') and IsUpgrade()
+Type: files;      Name: {app}\Languages\zh-TW.xml;      Check: not IsComponentSelected('translations') and IsUpgrade()
 Type: dirifempty; Name: {app}\Languages;                Check: not IsComponentSelected('translations') and IsUpgrade()
 #endif
 
diff --git a/src/Languages/zh-tw.xml b/src/Languages/zh-TW.xml
similarity index 100%
rename from src/Languages/zh-tw.xml
rename to src/Languages/zh-TW.xml
diff --git a/src/SubtitleEdit.csproj b/src/SubtitleEdit.csproj
index 0d11a71cf..c412bebc7 100644
--- a/src/SubtitleEdit.csproj
+++ b/src/SubtitleEdit.csproj
@@ -1441,7 +1441,7 @@
     <Content Include="Languages\zh-Hans.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
-    <Content Include="Languages\zh-tw.xml">
+    <Content Include="Languages\zh-TW.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
     <None Include="Resources\pictureBoxNoFSOver.Image.png" />