diff --git a/src/xrt/ipc/client/ipc_client_instance.c b/src/xrt/ipc/client/ipc_client_instance.c
index b79ed653a..3137cd6bc 100644
--- a/src/xrt/ipc/client/ipc_client_instance.c
+++ b/src/xrt/ipc/client/ipc_client_instance.c
@@ -254,7 +254,7 @@ ipc_client_instance_destroy(struct xrt_instance *xinst)
  * @public @memberof ipc_instance
  */
 xrt_result_t
-ipc_instance_create(struct xrt_instance_info *i_info, struct xrt_instance **out_xinst)
+ipc_instance_create(const struct xrt_instance_info *i_info, struct xrt_instance **out_xinst)
 {
 	struct ipc_client_instance *ii = U_TYPED_CALLOC(struct ipc_client_instance);
 	ii->base.create_system = ipc_client_instance_create_system;
diff --git a/src/xrt/ipc/client/ipc_client_interface.h b/src/xrt/ipc/client/ipc_client_interface.h
index 434400671..d97e65f92 100644
--- a/src/xrt/ipc/client/ipc_client_interface.h
+++ b/src/xrt/ipc/client/ipc_client_interface.h
@@ -25,7 +25,7 @@ struct xrt_instance_info;
  * @ingroup ipc_client
  */
 xrt_result_t
-ipc_instance_create(struct xrt_instance_info *ii, struct xrt_instance **out_xinst);
+ipc_instance_create(const struct xrt_instance_info *i_info, struct xrt_instance **out_xinst);
 
 
 #ifdef __cplusplus