diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 5742f62..254ab2a 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1434,7 +1434,7 @@
 static_assert( ( MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE ) == 0,
                "One or more key attribute flag is listed as both external-only and dual-use" );
 static_assert( ( PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE ) == 0,
-               "One or more key attribute flag is listed as both external-only and dual-use" );
+               "One or more key attribute flag is listed as both internal-only and dual-use" );
 static_assert( ( PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY ) == 0,
                "One or more key attribute flag is listed as both internal-only and external-only" );
 #endif