diff --git a/src/index.js b/src/index.js
index 9752d3a..b507c8c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -23,7 +23,6 @@ export { asyncBufferFromUrl, byteLengthFromUrl, cachedAsyncBuffer, flatten, toJs
  * @typedef {import('../src/types.d.ts').ConvertedType} ConvertedType
  * @typedef {import('../src/types.d.ts').TimeUnit} TimeUnit
  * @typedef {import('../src/types.d.ts').LogicalType} LogicalType
- * @typedef {import('../src/types.d.ts').LogicalTypeType} LogicalTypeType
  * @typedef {import('../src/types.d.ts').RowGroup} RowGroup
  * @typedef {import('../src/types.d.ts').ColumnChunk} ColumnChunk
  * @typedef {import('../src/types.d.ts').ColumnMetaData} ColumnMetaData
diff --git a/src/types.d.ts b/src/types.d.ts
index 9c3a506..e024419 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -195,8 +195,6 @@ export type LogicalType =
   | { type: 'GEOMETRY', crs?: string }
   | { type: 'GEOGRAPHY', crs?: string, algorithm?: EdgeInterpolationAlgorithm }
 
-export type LogicalTypeType = LogicalType['type']
-
 export interface RowGroup {
   columns: ColumnChunk[]
   total_byte_size: bigint