diff --git a/src/xrt/ipc/client/ipc_client_instance.c b/src/xrt/ipc/client/ipc_client_instance.c
index d6c797360..cf25a6230 100644
--- a/src/xrt/ipc/client/ipc_client_instance.c
+++ b/src/xrt/ipc/client/ipc_client_instance.c
@@ -7,6 +7,7 @@
  * @ingroup ipc_client
  */
 
+#include "xrt/xrt_results.h"
 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 #define _CRT_SECURE_NO_WARNINGS
 #endif
@@ -376,12 +377,12 @@ ipc_client_instance_create_system(struct xrt_instance *xinst,
 	return XRT_SUCCESS;
 }
 
-static int
+static xrt_result_t
 ipc_client_instance_get_prober(struct xrt_instance *xinst, struct xrt_prober **out_xp)
 {
 	*out_xp = NULL;
 
-	return -1;
+	return XRT_ERROR_PROBER_NOT_SUPPORTED;
 }
 
 static void