diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index e289dbeef..b67c0c576 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -56,11 +56,13 @@ typedef struct
         /* EC public key or key pair */
         mbedtls_ecp_keypair *ecp;
 #endif /* MBEDTLS_ECP_C */
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
         /* Any key type in a secure element */
         struct se
         {
             psa_key_slot_number_t slot_number;
         } se;
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
     } data;
 } psa_key_slot_t;