diff --git a/tests/scripts/generate_psa_wrappers.py b/tests/scripts/generate_psa_wrappers.py
index c65603b3b7..b56bd34ce5 100755
--- a/tests/scripts/generate_psa_wrappers.py
+++ b/tests/scripts/generate_psa_wrappers.py
@@ -163,6 +163,9 @@ class PSAWrapperGenerator(c_wrapper_generator.Base):
                              'psa_hash_compute',
                              'psa_hash_compare'):
             return True
+        if function_name in ('psa_key_derivation_key_agreement',
+                             'psa_raw_key_agreement'):
+            return True
         return False
 
     def _write_function_call(self, out: typing_util.Writable,
diff --git a/tests/src/psa_test_wrappers.c b/tests/src/psa_test_wrappers.c
index 728afed3de..35500b597e 100644
--- a/tests/src/psa_test_wrappers.c
+++ b/tests/src/psa_test_wrappers.c
@@ -684,7 +684,13 @@ psa_status_t mbedtls_test_wrap_psa_key_derivation_key_agreement(
     const uint8_t *arg3_peer_key,
     size_t arg4_peer_key_length)
 {
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_POISON(arg3_peer_key, arg4_peer_key_length);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     psa_status_t status = (psa_key_derivation_key_agreement)(arg0_operation, arg1_step, arg2_private_key, arg3_peer_key, arg4_peer_key_length);
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_UNPOISON(arg3_peer_key, arg4_peer_key_length);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     return status;
 }
 
@@ -923,7 +929,15 @@ psa_status_t mbedtls_test_wrap_psa_raw_key_agreement(
     size_t arg5_output_size,
     size_t *arg6_output_length)
 {
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_POISON(arg2_peer_key, arg3_peer_key_length);
+    MBEDTLS_TEST_MEMORY_POISON(arg4_output, arg5_output_size);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     psa_status_t status = (psa_raw_key_agreement)(arg0_alg, arg1_private_key, arg2_peer_key, arg3_peer_key_length, arg4_output, arg5_output_size, arg6_output_length);
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
+    MBEDTLS_TEST_MEMORY_UNPOISON(arg2_peer_key, arg3_peer_key_length);
+    MBEDTLS_TEST_MEMORY_UNPOISON(arg4_output, arg5_output_size);
+#endif /* defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS) */
     return status;
 }