diff --git a/samples/posix/eventfd/sample.yaml b/samples/posix/eventfd/sample.yaml
index 50836e5b99a..80c8c7cb02c 100644
--- a/samples/posix/eventfd/sample.yaml
+++ b/samples/posix/eventfd/sample.yaml
@@ -8,3 +8,16 @@ common:
 tests:
   sample.posix.eventfd:
     tags: posix
+    harness: console
+    harness_config:
+      type: multi_line
+      ordered: true
+      regex:
+        -  "Writing 1 to efd"
+        -  "Writing 2 to efd"
+        -  "Writing 3 to efd"
+        -  "Writing 4 to efd"
+        -  "Completed write loop"
+        -  "About to read"
+        -  "Read 10 (0xa) from efd"
+        -  "Finished"