diff --git a/src/libopensc/errors.h b/src/libopensc/errors.h
index c3aa158b..2d3d0f21 100644
--- a/src/libopensc/errors.h
+++ b/src/libopensc/errors.h
@@ -84,6 +84,7 @@ extern "C" {
 #define SC_ERROR_PASSPHRASE_REQUIRED		-1409
 #define SC_ERROR_EXTRACTABLE_KEY		-1410
 #define SC_ERROR_DECRYPT_FAILED			-1411
+#define SC_ERROR_WRONG_PADDING			-1412
 
 /* Relating to PKCS #15 init stuff */
 #define SC_ERROR_PKCS15INIT			-1500