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diff --git a/packages/tailwindcss-language-service/src/util/js.ts b/packages/tailwindcss-language-service/src/util/js.ts
index dbc5be4ef15b9d001e7198e3551e5d3f9058d491..a74881b986dec59544b3a87f8750243ac7ed1f7f 100644
--- a/packages/tailwindcss-language-service/src/util/js.ts
+++ b/packages/tailwindcss-language-service/src/util/js.ts
@@ -19,5 +19,5 @@   })
 
   let boundaries = getLanguageBoundaries(state, doc, str)
 
-  return boundaries ? boundaries[boundaries.length - 1].type === 'jsx' : false
+  return boundaries ? ['jsx', 'tsx'].includes(boundaries[boundaries.length - 1].type) : false
 }