diff --git a/swisssurfer/src/pluginfactory.hxx b/swisssurfer/src/pluginfactory.hxx
index be54792..c729593 100644
--- a/swisssurfer/src/pluginfactory.hxx
+++ b/swisssurfer/src/pluginfactory.hxx
@@ -44,8 +44,8 @@ class PluginFactory: public QWebPluginFactory {
          <<"argumentValues:"<<argumentValues.join(", ");
       if (mimeType=="application/pdf") {
         Poppler::Document *doc = Poppler::Document::load(url.path());
-        assert(doc);
-        assert(!doc->isLocked());
+        // assert(doc);
+        // assert(!doc->isLocked());
         
         // output some meta-data
         int major = 0, minor = 0;