Fix copypasta

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/suites/test_suite_pk.function b/tests/suites/test_suite_pk.function
index 2feb9c4..089202b 100644
--- a/tests/suites/test_suite_pk.function
+++ b/tests/suites/test_suite_pk.function
@@ -2490,7 +2490,7 @@
 
     /* Create 4 PK contexts starting from the PSA keys we just created. */
     TEST_EQUAL(mbedtls_pk_copy_from_psa(priv_key_id, &pk_priv), 0);
-    TEST_EQUAL(mbedtls_pk_copy_public_from_psa(pub_key_id, &pk_priv_copy_public), 0);
+    TEST_EQUAL(mbedtls_pk_copy_public_from_psa(priv_key_id, &pk_priv_copy_public), 0);
     TEST_EQUAL(mbedtls_pk_copy_from_psa(pub_key_id, &pk_pub), 0);
     TEST_EQUAL(mbedtls_pk_copy_public_from_psa(pub_key_id, &pk_pub_copy_public), 0);