diff -u -ubr a/src/core/UBTextTools.cpp b/src/core/UBTextTools.cpp
--- a/src/core/UBTextTools.cpp	2017-05-09 15:59:42.177965830 +0200
+++ b/src/core/UBTextTools.cpp	2017-05-09 16:00:08.547747097 +0200
@@ -34,7 +34,7 @@
 
 
     for(int i = 0; i < _html.length(); i+=1){
-        if(_html.at(i) != '\0')
+        if(_html.at(i) != QChar('\0'))
             clean.append(_html.at(i));
     }
     return clean;