diff --git a/android/testing.go b/android/testing.go
index f32d745..8a9134c 100644
--- a/android/testing.go
+++ b/android/testing.go
@@ -394,7 +394,7 @@
 	if !found {
 		t.Errorf("missing the expected error %q (checked %d error(s))", pattern, len(errs))
 		for i, err := range errs {
-			t.Errorf("errs[%d] = %s", i, err)
+			t.Errorf("errs[%d] = %q", i, err)
 		}
 	}
 }