diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index f224d5e..962223f 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -9367,6 +9367,11 @@
     ssl_buffering_free( ssl );
 #endif
 
+#if defined(MBEDTLS_ECDH_C) &&                  \
+    defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_destroy_key( handshake->ecdh_psa_privkey );
+#endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */
+
     mbedtls_platform_zeroize( handshake,
                               sizeof( mbedtls_ssl_handshake_params ) );
 }