diff --git a/unotest/source/embindtest/embindtest.cxx b/unotest/source/embindtest/embindtest.cxx
index 260c9883eb19..1f8b916fbbf1 100644
--- a/unotest/source/embindtest/embindtest.cxx
+++ b/unotest/source/embindtest/embindtest.cxx
@@ -279,7 +279,7 @@ class Test : public cppu::WeakImplHelper<org::libreoffice::embindtest::XTest>
             return false;
         }
         auto const& e = *o3tl::forceAccess<org::libreoffice::embindtest::Exception>(value);
-        return e.Message == "error" && !e.Context.is() && e.m1 == -123456 && e.m2 == 100.5
+        return e.Message.startsWith("error") && !e.Context.is() && e.m1 == -123456 && e.m2 == 100.5
                && e.m3 == u"hä";
     }
 
diff --git a/unotest/source/embindtest/embindtest.js b/unotest/source/embindtest/embindtest.js
index 9b9911826219..c661589683f6 100644
--- a/unotest/source/embindtest/embindtest.js
+++ b/unotest/source/embindtest/embindtest.js
@@ -289,7 +289,7 @@ Module.addOnPostRun(function() {
     {
         let v = test.getAnyException();
         console.log(v);
-        console.assert(v.get().Message === 'error');
+        console.assert(v.get().Message.startsWith('error'));
         console.assert(v.get().Context === null);
         console.assert(v.get().m1 === -123456);
         console.assert(v.get().m2 === 100.5);