diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 910de1f03..fc296d365 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -4259,7 +4259,7 @@ static psa_status_t its_to_psa_error( psa_its_status_t ret )
             return( PSA_ERROR_INSUFFICIENT_STORAGE );
 
         case PSA_ITS_ERROR_INVALID_KEY:
-        case PSA_PS_ERROR_OFFSET_INVALID:
+        case PSA_ITS_ERROR_OFFSET_INVALID:
         case PSA_ITS_ERROR_INCORRECT_SIZE:
         case PSA_ITS_ERROR_BAD_POINTER:
             return( PSA_ERROR_INVALID_ARGUMENT );
diff --git a/library/psa_crypto_storage_its.c b/library/psa_crypto_storage_its.c
index 29394b5d8..35caa39ad 100644
--- a/library/psa_crypto_storage_its.c
+++ b/library/psa_crypto_storage_its.c
@@ -52,7 +52,7 @@ static psa_status_t its_to_psa_error( psa_its_status_t ret )
             return( PSA_ERROR_INSUFFICIENT_STORAGE );
 
         case PSA_ITS_ERROR_INVALID_KEY:
-        case PSA_PS_ERROR_OFFSET_INVALID:
+        case PSA_ITS_ERROR_OFFSET_INVALID:
         case PSA_ITS_ERROR_INCORRECT_SIZE:
         case PSA_ITS_ERROR_BAD_POINTER:
             return( PSA_ERROR_INVALID_ARGUMENT );