diff --git a/common/web/types/src/kpj/keyman-developer-project.ts b/common/web/types/src/kpj/keyman-developer-project.ts
index 27ea6ddf16..a53cbca20e 100644
--- a/common/web/types/src/kpj/keyman-developer-project.ts
+++ b/common/web/types/src/kpj/keyman-developer-project.ts
@@ -37,7 +37,7 @@ export class KeymanDeveloperProject {
     for(let filename of files) {
       let fullPath = this.callbacks.path.join(sourcePath, filename);
       if(KeymanFileTypes.filenameIs(filename, KeymanFileTypes.Source.LdmlKeyboard)) {
-        if(!this.callbacks.fs.readFileSync(fullPath, 'utf-8').match(/ldmlKeyboard\.dtd/)) {
+        if(!this.callbacks.fs.readFileSync(fullPath, 'utf-8').match(/ldmlKeyboard3\.dtd/)) {
           // Skip this .xml because we assume it isn't really a keyboard .xml
           continue;
         }
diff --git a/common/web/types/test/fixtures/invalid-conforms-to.xml b/common/web/types/test/fixtures/invalid-conforms-to.xml
index 01e463d817..de19c3a3bf 100644
--- a/common/web/types/test/fixtures/invalid-conforms-to.xml
+++ b/common/web/types/test/fixtures/invalid-conforms-to.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
-  DOCTYPE keyboard SYSTEM "../../../../../resources/standards-data/ldml-keyboards/techpreview/dtd/ldmlKeyboard.dtd"
+  DOCTYPE keyboard SYSTEM "../../../../../resources/standards-data/ldml-keyboards/techpreview/dtd/ldmlKeyboard3.dtd"
   Disabling doctype for this invalid file, not used by compiler, and avoids complaints in IDEs etc.
 -->
 <keyboard3 locale="mt" conformsTo="nothing-anyone-ever-heard-of"> <!-- invalid -->
diff --git a/resources/standards-data/ldml-keyboards/readme.md b/resources/standards-data/ldml-keyboards/readme.md
index 66f54789c0..373c7c0745 100644
--- a/resources/standards-data/ldml-keyboards/readme.md
+++ b/resources/standards-data/ldml-keyboards/readme.md
@@ -9,8 +9,8 @@ That will very roughly correspond to <https://github.com/unicode-org/cldr/tree/k
 
 Each directory contains:
 
-- `ldmlKeyboard.dtd` - the DTD file
-- `ldmlKeyboard.xsd` - the XSD file, automatically converted from the DTD using
+- `ldmlKeyboard3.dtd` - the DTD file
+- `ldmlKeyboard3.xsd` - the XSD file, automatically converted from the DTD using
   Visual Studio, hand tweaked as necessary
 - `ldml-keyboard3.schema.json` - the JSON schema file, automatically converted
   from the XSD using xsd2json (https://github.com/Mermade/jgeXml), hand tweaked