diff --git a/src/analysis/typepal/TypePal.rsc b/src/analysis/typepal/TypePal.rsc
index 5240008..26d415f 100644
--- a/src/analysis/typepal/TypePal.rsc
+++ b/src/analysis/typepal/TypePal.rsc
@@ -21,7 +21,7 @@ import ParseTree;
 import Message;
 
 extend analysis::typepal::Solver;
-//extend analysis::typepal::Version;
+extend analysis::typepal::Version;
 
 // collectAndSolve shorthand for a common, simple, scenario