diff --git a/scripts/buildTokens.ts b/scripts/buildTokens.ts
index 5626d2f8f..935507c0a 100644
--- a/scripts/buildTokens.ts
+++ b/scripts/buildTokens.ts
@@ -52,7 +52,14 @@ export const buildDesignTokens = (buildOptions: ConfigGeneratorOptions): void =>
   for (const {filename, source, include} of themes) {
     // build functional scales
     PrimerStyleDictionary.extend(
-      getStyleDictionaryConfig(`functional/themes/${filename}`, source, include, {...buildOptions, themed: true}),
+      getStyleDictionaryConfig(
+        `functional/themes/${filename}`,
+        source,
+        include,
+        {...buildOptions, themed: true},
+        // disable fallbacks for themes
+        {fallbacks: undefined},
+      ),
     ).buildAllPlatforms()
   }
 
diff --git a/src/types/StyleDictionaryConfigGenerator.d.ts b/src/types/StyleDictionaryConfigGenerator.d.ts
index cf306a0ac..934e2d6d6 100644
--- a/src/types/StyleDictionaryConfigGenerator.d.ts
+++ b/src/types/StyleDictionaryConfigGenerator.d.ts
@@ -11,5 +11,5 @@ export type StyleDictionaryConfigGenerator = (
   source: string[],
   include: string[],
   options: ConfigGeneratorOptions,
-  platforms?: Record<string, StyleDictionary.Platform>,
+  platforms?: Record<string, StyleDictionary.Platform | undefined>,
 ) => StyleDictionary.Config