diff --git a/sdk/program/src/program_error.rs b/sdk/program/src/program_error.rs
index f07936cc37..bce1a6a50e 100644
--- a/sdk/program/src/program_error.rs
+++ b/sdk/program/src/program_error.rs
@@ -169,7 +169,7 @@ impl From<u64> for ProgramError {
             ACCOUNT_BORROW_FAILED => Self::AccountBorrowFailed,
             MAX_SEED_LENGTH_EXCEEDED => Self::MaxSeedLengthExceeded,
             INVALID_SEEDS => Self::InvalidSeeds,
-            BORSH_IO_ERROR => Self::BorshIoError("Unkown".to_string()),
+            BORSH_IO_ERROR => Self::BorshIoError("Unknown".to_string()),
             ACCOUNT_NOT_RENT_EXEMPT => Self::AccountNotRentExempt,
             UNSUPPORTED_SYSVAR => Self::UnsupportedSysvar,
             ILLEGAL_OWNER => Self::IllegalOwner,
@@ -227,7 +227,7 @@ where
             ACCOUNT_BORROW_FAILED => Self::AccountBorrowFailed,
             MAX_SEED_LENGTH_EXCEEDED => Self::MaxSeedLengthExceeded,
             INVALID_SEEDS => Self::InvalidSeeds,
-            BORSH_IO_ERROR => Self::BorshIoError("Unkown".to_string()),
+            BORSH_IO_ERROR => Self::BorshIoError("Unknown".to_string()),
             ACCOUNT_NOT_RENT_EXEMPT => Self::AccountNotRentExempt,
             UNSUPPORTED_SYSVAR => Self::UnsupportedSysvar,
             ILLEGAL_OWNER => Self::IllegalOwner,