diff --git a/bp2build/testing.go b/bp2build/testing.go
index ee2ab08..856b6ee 100644
--- a/bp2build/testing.go
+++ b/bp2build/testing.go
@@ -228,6 +228,7 @@
 //
 // If ignoreUnexpected=true then it will ignore directories for which there are no expected targets.
 func (b BazelTestResult) CompareAllBazelTargets(t *testing.T, description string, expectedTargets map[string][]string, ignoreUnexpected bool) {
+	t.Helper()
 	actualTargets := b.buildFileToTargets
 
 	// Generate the sorted set of directories to check.