Copyediting
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/docs/4.0-migration-guide/error-codes.md b/docs/4.0-migration-guide/error-codes.md
index 8cc7098..074acc0 100644
--- a/docs/4.0-migration-guide/error-codes.md
+++ b/docs/4.0-migration-guide/error-codes.md
@@ -25,4 +25,4 @@
| `MBEDTLS_ERR_OID_BUF_TOO_SMALL` | `PSA_ERROR_BUFFER_TOO_SMALL`
| `MBEDTLS_ERR_OID_NOT_FOUND` | `PSA_ERROR_NOT_SUPPORTED` |
-See also the corresponding section in the TF-PSA-Crypto migration guide, which lists errors from cryptography modules.
+See also the corresponding section in the TF-PSA-Crypto migration guide, which lists error codes from cryptography modules.