diff --git a/dumux/io/vtkmultiwriter.hh b/dumux/io/vtkmultiwriter.hh
index 19e61119bfc421768ba60b74df93b977abae51c8..c4c65b0c80e8036ff7e1e6378b7adb52aebbaffe 100644
--- a/dumux/io/vtkmultiwriter.hh
+++ b/dumux/io/vtkmultiwriter.hh
@@ -357,8 +357,8 @@ private:
         if (commSize_ > 1) {
             std::ostringstream oss;
             oss << "s" << std::setw(4) << std::setfill('0') << commSize_
-     	        << ":p" << std::setw(4) << std::setfill('0') << rank
-                << ":" << simName_ << "-"
+     	        << "-p" << std::setw(4) << std::setfill('0') << rank
+                << "-" << simName_ << "-"
                 << std::setw(5) << curWriterNum_;
             return oss.str();