diff --git a/packages/taler-util/src/taler-types.ts b/packages/taler-util/src/taler-types.ts
index eaba1ae3d..d8fdc2519 100644
--- a/packages/taler-util/src/taler-types.ts
+++ b/packages/taler-util/src/taler-types.ts
@@ -1922,22 +1922,13 @@ export interface BatchDepositSuccess {
   // Array of deposit confirmation signatures from the exchange
   // Entries must be in the same order the coins were given
   // in the batch deposit request.
-  exchange_sigs: DepositConfirmationSignature[];
+  exchange_sig: EddsaSignatureString;
 }
 
-export const codecForDepositConfirmationSignature =
-  (): Codec<DepositConfirmationSignature> =>
-    buildCodecForObject<DepositConfirmationSignature>()
-      .property("exchange_sig", codecForString())
-      .build("DepositConfirmationSignature");
-
 export const codecForBatchDepositSuccess = (): Codec<BatchDepositSuccess> =>
   buildCodecForObject<BatchDepositSuccess>()
     .property("exchange_pub", codecForString())
-    .property(
-      "exchange_sigs",
-      codecForList(codecForDepositConfirmationSignature()),
-    )
+    .property("exchange_sig", codecForString())
     .property("exchange_timestamp", codecForTimestamp)
     .property("transaction_base_url", codecOptional(codecForString()))
     .build("BatchDepositSuccess");