diff --git a/src/libopensc/errors.c b/src/libopensc/errors.c
index f4a82de1..83a9968c 100644
--- a/src/libopensc/errors.c
+++ b/src/libopensc/errors.c
@@ -79,6 +79,9 @@ const char *sc_strerror(int error)
 		"Generic PKCS #15 initialization error",
 		"Syntax error",
 		"Inconsistent or incomplete pkcs15 profile",
+		"Key length/algorithm not supported by card",
+		"No default (transport) key available",
+		"The PKCS#15 Key/certificate ID specified is not unique",
 	};
 	const int p15i_base = -SC_ERROR_PKCS15INIT;
 	const char *misc_errors[] = {
diff --git a/src/libopensc/errors.h b/src/libopensc/errors.h
index b8b21b59..2b9f5647 100644
--- a/src/libopensc/errors.h
+++ b/src/libopensc/errors.h
@@ -83,6 +83,7 @@ extern "C" {
 #define SC_ERROR_INCONSISTENT_PROFILE		-1502
 #define SC_ERROR_INCOMPATIBLE_KEY		-1503
 #define SC_ERROR_NO_DEFAULT_KEY			-1504
+#define SC_ERROR_ID_NOT_UNIQUE			-1505
 
 /* Errors that do not fit the categories above */
 #define SC_ERROR_UNKNOWN			-1900