diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index bf159ae..4d79e9c 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -148,60 +148,60 @@
                 unsigned char *end,
                 size_t *out_len )
 {
-        psa_status_t status = PSA_ERROR_GENERIC_ERROR;
-        int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-        psa_key_attributes_t key_attributes;
-        size_t own_pubkey_len;
-        mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-        size_t ecdh_bits = 0;
+    psa_status_t status = PSA_ERROR_GENERIC_ERROR;
+    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
+    psa_key_attributes_t key_attributes;
+    size_t own_pubkey_len;
+    mbedtls_ssl_handshake_params *handshake = ssl->handshake;
+    size_t ecdh_bits = 0;
 
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
+    MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
 
-        /* Convert EC group to PSA key type. */
-        if( ( handshake->ecdh_psa_type =
-            mbedtls_psa_parse_tls_ecc_group( named_group, &ecdh_bits ) ) == 0 )
-                return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+    /* Convert EC group to PSA key type. */
+    if( ( handshake->ecdh_psa_type =
+        mbedtls_psa_parse_tls_ecc_group( named_group, &ecdh_bits ) ) == 0 )
+            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
 
-        if( ecdh_bits > 0xffff )
-            return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
-        ssl->handshake->ecdh_bits = (uint16_t) ecdh_bits;
+    if( ecdh_bits > 0xffff )
+        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    ssl->handshake->ecdh_bits = (uint16_t) ecdh_bits;
 
-        key_attributes = psa_key_attributes_init();
-        psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
-        psa_set_key_algorithm( &key_attributes, PSA_ALG_ECDH );
-        psa_set_key_type( &key_attributes, handshake->ecdh_psa_type );
-        psa_set_key_bits( &key_attributes, handshake->ecdh_bits );
+    key_attributes = psa_key_attributes_init();
+    psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
+    psa_set_key_algorithm( &key_attributes, PSA_ALG_ECDH );
+    psa_set_key_type( &key_attributes, handshake->ecdh_psa_type );
+    psa_set_key_bits( &key_attributes, handshake->ecdh_bits );
 
-        /* Generate ECDH private key. */
-        status = psa_generate_key( &key_attributes,
-                                   &handshake->ecdh_psa_privkey );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_generate_key", ret );
-            return( ret );
+    /* Generate ECDH private key. */
+    status = psa_generate_key( &key_attributes,
+                                &handshake->ecdh_psa_privkey );
+    if( status != PSA_SUCCESS )
+    {
+        ret = psa_ssl_status_to_mbedtls( status );
+        MBEDTLS_SSL_DEBUG_RET( 1, "psa_generate_key", ret );
+        return( ret );
 
-        }
+    }
 
-        /* Export the public part of the ECDH private key from PSA. */
-        status = psa_export_public_key( handshake->ecdh_psa_privkey,
-                                        buf, (size_t)( end - buf ),
-                                        &own_pubkey_len );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_export_public_key", ret );
-            return( ret );
+    /* Export the public part of the ECDH private key from PSA. */
+    status = psa_export_public_key( handshake->ecdh_psa_privkey,
+                                    buf, (size_t)( end - buf ),
+                                    &own_pubkey_len );
+    if( status != PSA_SUCCESS )
+    {
+        ret = psa_ssl_status_to_mbedtls( status );
+        MBEDTLS_SSL_DEBUG_RET( 1, "psa_export_public_key", ret );
+        return( ret );
 
-        }
+    }
 
-        if( own_pubkey_len > (size_t)( end - buf ) )
-        {
-             MBEDTLS_SSL_DEBUG_MSG( 1, ( "No space in the buffer for ECDH public key." ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-        }
+    if( own_pubkey_len > (size_t)( end - buf ) )
+    {
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "No space in the buffer for ECDH public key." ) );
+        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+    }
 
-        *out_len = own_pubkey_len;
+    *out_len = own_pubkey_len;
 
     return( 0 );
 }