diff --git a/core/test/src/com/google/zxing/oned/EAN13BlackBox1TestCase.java b/core/test/src/com/google/zxing/oned/EAN13BlackBox1TestCase.java
index 60a57599d..3a88d670e 100644
--- a/core/test/src/com/google/zxing/oned/EAN13BlackBox1TestCase.java
+++ b/core/test/src/com/google/zxing/oned/EAN13BlackBox1TestCase.java
@@ -27,8 +27,8 @@ public final class EAN13BlackBox1TestCase extends AbstractBlackBoxTestCase {
 
   public EAN13BlackBox1TestCase() {
     super("test/data/blackbox/ean13-1", new MultiFormatReader(), BarcodeFormat.EAN_13);
-    addTest(28, 31, 0.0f);
-    addTest(27, 31, 180.0f);
+    addTest(28, 30, 0.0f);
+    addTest(26, 30, 180.0f);
   }
 
 }
\ No newline at end of file