diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 19daee957..5c1a98db6 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -5501,7 +5501,9 @@ psa_status_t psa_generate_random(uint8_t *output_external,
 
     status = psa_generate_random_internal(output, output_size);
 
+#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
 exit:
+#endif
     LOCAL_OUTPUT_FREE(output_external, output);
     return status;
 }