diff --git a/lib/src/test/test.java b/lib/src/test/test.java
index 25a4df7..c084738 100644
--- a/lib/src/test/test.java
+++ b/lib/src/test/test.java
@@ -236,7 +236,7 @@ public class test {
             TestArchive archive1 = new TestArchive(zimFile);
             fail("ERROR: Archive created with invalid ZIM file!");
         } catch (Exception e) {
-            assertEquals("Error opening as a split file: " + zimFile, e.getMessage());
+            assertEquals("Error opening ZIM file: " + zimFile, e.getMessage());
         }
     }