diff --git a/vlib/v/tests/array_access_optimisation_test.v b/vlib/v/tests/array_access_optimisation_test.v
index 86188dcb18..06db6533d0 100644
--- a/vlib/v/tests/array_access_optimisation_test.v
+++ b/vlib/v/tests/array_access_optimisation_test.v
@@ -39,7 +39,12 @@ fn test_array_optimisation() {
 	p.wait()
 	p.close()
 
-	assert stdout.contains('// THE END.')
+	ending := '// THE END.'
+	it_ends_properly := stdout.contains(ending)
+	if !it_ends_properly {
+		dump(stdout)
+	}
+	assert it_ends_properly
 
 	for line in stdout.split('\n') {
 		direct(line)