diff --git a/protogen.hh b/protogen.hh
index f99bd4e..f596b79 100644
--- a/protogen.hh
+++ b/protogen.hh
@@ -829,9 +829,7 @@ struct json<std::string, void>
                 case '\r': (*ctx.os) <<  "\\r"; break;
                 case '\n': (*ctx.os) <<  "\\n"; break;
                 case '\t': (*ctx.os) <<  "\\t"; break;
-                default:
-                    // TODO: escape control character instead of removing it
-                    if (*it >= 32) (*ctx.os) << *it;
+                default:   (*ctx.os) << *it;
             }
         }
         (*ctx.os) <<  '"';
diff --git a/tests/tests.cc b/tests/tests.cc
index 1817555..bafbca6 100644
--- a/tests/tests.cc
+++ b/tests/tests.cc
@@ -53,6 +53,8 @@ bool RUN_TEST1( int argc, char **argv)
     number.type = false;
     person.phones.push_back(number);
 
+    book.people.push_back(person);
+
     std::string json1;
     std::string json2;
     phonebook::AddressBook temp;