diff --git a/ts_src/index.ts b/ts_src/index.ts
index 4e76c96..f9fab90 100644
--- a/ts_src/index.ts
+++ b/ts_src/index.ts
@@ -14,6 +14,7 @@ export { Transaction } from './transaction';
 export { TransactionBuilder } from './transaction_builder';
 
 export { BIP32Interface } from 'bip32';
+export { ECPairInterface } from './ecpair';
 export { Network } from './networks';
 export { Payment, PaymentOpts } from './payments';
 export { OpCode } from './script';
diff --git a/types/index.d.ts b/types/index.d.ts
index d21454a..5762de5 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -11,6 +11,7 @@ export { OPS as opcodes } from './script';
 export { Transaction } from './transaction';
 export { TransactionBuilder } from './transaction_builder';
 export { BIP32Interface } from 'bip32';
+export { ECPairInterface } from './ecpair';
 export { Network } from './networks';
 export { Payment, PaymentOpts } from './payments';
 export { OpCode } from './script';