diff --git a/src/smt/smt_parallel.cpp b/src/smt/smt_parallel.cpp
index 8de490cf7..f6049405d 100644
--- a/src/smt/smt_parallel.cpp
+++ b/src/smt/smt_parallel.cpp
@@ -317,7 +317,11 @@ namespace smt {
     }
 
     parallel::param_generator::param_generator(parallel& p)
-        : p(p), b(p.m_batch_manager), m_p(p.ctx.get_params()), m_l2g(m, p.ctx.m) {
+        : b(p.m_batch_manager), m_p(p.ctx.get_params()), m_l2g(m, p.ctx.m) {
+        // patch fix so that ctx = alloc(context, m, p.ctx.get_fparams(), m_p); doesn't crash due to some issue with default construction of m
+        ast_translation m_g2l(p.ctx.m, m);
+        m_g2l(p.ctx.m.mk_true());
+
         ctx = alloc(context, m, p.ctx.get_fparams(), m_p);
         context::copy(p.ctx, *ctx, true);
         // don't share initial units
diff --git a/src/smt/smt_parallel.h b/src/smt/smt_parallel.h
index 27111c0bd..d5980e8c3 100644
--- a/src/smt/smt_parallel.h
+++ b/src/smt/smt_parallel.h
@@ -118,11 +118,9 @@ namespace smt {
             using param_value = std::variant<unsigned_value, bool>;
             using param_values = vector<std::pair<symbol, param_value>>;
 
-            parallel &p;
             batch_manager &b;
             ast_manager m;
             scoped_ptr<context> ctx;
-            ast_translation m_l2g;
 
             unsigned N = 4;  // number of prefix permutations to test (including current)
             unsigned m_max_prefix_conflicts = 1000;
@@ -131,6 +129,7 @@ namespace smt {
             vector<expr_ref_vector> m_recorded_cubes;
             params_ref m_p;
             param_values m_param_state;
+            ast_translation m_l2g;
 
             params_ref apply_param_values(param_values const &pv);
             void init_param_state();