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--- a/libupnpp/smallut.cpp
+++ b/libupnpp/smallut.cpp
@@ -477,13 +477,13 @@
 }
 
 // Remove some chars and replace them with spaces
-string neutchars(const string& str, const string& chars)
+string neutchars(const string& str, const string& chars, char rep)
 {
     string out;
-    neutchars(str, out, chars);
+    neutchars(str, out, chars, rep);
     return out;
 }
-void neutchars(const string& str, string& out, const string& chars)
+void neutchars(const string& str, string& out, const string& chars, char rep)
 {
     string::size_type startPos, pos;
 
@@ -498,7 +498,7 @@
         if (pos == string::npos) {
             out += str.substr(startPos);
         } else {
-            out += str.substr(startPos, pos - startPos) + " ";
+            out += str.substr(startPos, pos - startPos) + rep;
         }
     }
 }