diff --git a/explorer/src/components/instruction/token/types.ts b/explorer/src/components/instruction/token/types.ts
index d14c7b82bc..54b3ce5fa7 100644
--- a/explorer/src/components/instruction/token/types.ts
+++ b/explorer/src/components/instruction/token/types.ts
@@ -148,7 +148,7 @@ const ApproveChecked = object({
 const MintToChecked = object({
   account: Pubkey,
   mint: Pubkey,
-  mintAuthority: Pubkey,
+  mintAuthority: optional(Pubkey),
   multisigMintAuthority: optional(Pubkey),
   signers: optional(array(Pubkey)),
   tokenAmount: TokenAmountUi,