diff --git a/t/test-lib.sh b/t/test-lib.sh
index 293caf0f20..5ea5d1d62a 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -334,6 +334,7 @@ nr_san_dir_leaks_ () {
 	find "$TEST_RESULTS_SAN_DIR" \
 		-type f \
 		-name "$TEST_RESULTS_SAN_FILE_PFX.*" 2>/dev/null |
+	xargs grep -lv "Unable to get registers from thread" |
 	wc -l
 }