--- a/thrift/compiler/generate/t_rb_generator.cc	2015-10-13 08:22:03.487661748 +0100
+++ b/thrift/compiler/generate/t_rb_generator.cc	2015-10-13 08:25:54.874327793 +0100
@@ -312,7 +312,11 @@
     //Populate the hash
     int32_t value = (*c_iter)->get_value();
 
-    first ? first = false : f_types_ << ", ";
+    //first ? first = false : f_types_ << ", ";
+    if (first)
+       first = false;
+    else
+       f_types_ << ", ";
     f_types_ << value << " => \"" << capitalize((*c_iter)->get_name()) << "\"";
 
   }
@@ -323,7 +327,11 @@
   first = true;
   for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
     // Populate the set
-    first ? first = false: f_types_ << ", ";
+    //first ? first = false: f_types_ << ", ";
+    if (first)
+       first = false;
+     else
+       f_types_ << ", ";
     f_types_ << capitalize((*c_iter)->get_name());
   }
   f_types_ << "]).freeze" << endl;