diff --git a/lib/rb/spec/ThriftSpec.thrift b/lib/rb/spec/ThriftSpec.thrift
index 84111c1..b497a60 100644
--- a/lib/rb/spec/ThriftSpec.thrift
+++ b/lib/rb/spec/ThriftSpec.thrift
@@ -69,6 +69,7 @@
   5: map<i32, map<string, double>> complex,
   6: set<i16> shorts = [5, 17, 239],
   7: optional string opt_string
+  8: bool my_bool
 }
 
 struct BoolStruct {