diff --git a/src/mir/builder/builder_calls.rs b/src/mir/builder/builder_calls.rs
index 435d0805..8690cde8 100644
--- a/src/mir/builder/builder_calls.rs
+++ b/src/mir/builder/builder_calls.rs
@@ -893,8 +893,6 @@ impl super::MirBuilder {
         let saved_function = self.current_function.take();
         let saved_block = self.current_block.take();
         let saved_var_map = std::mem::take(&mut self.variable_map);
-        let saved_value_gen = self.value_gen.clone();
-        self.value_gen.reset();
         self.current_function = Some(function);
         self.current_block = Some(entry);
         self.ensure_block_exists(entry)?;
@@ -950,7 +948,6 @@ impl super::MirBuilder {
         self.current_function = saved_function;
         self.current_block = saved_block;
         self.variable_map = saved_var_map;
-        self.value_gen = saved_value_gen;
         Ok(())
     }
 
@@ -980,8 +977,6 @@ impl super::MirBuilder {
         let saved_function = self.current_function.take();
         let saved_block = self.current_block.take();
         let saved_var_map = std::mem::take(&mut self.variable_map);
-        let saved_value_gen = self.value_gen.clone();
-        self.value_gen.reset();
         self.current_function = Some(function);
         self.current_block = Some(entry);
         self.ensure_block_exists(entry)?;
@@ -1039,7 +1034,6 @@ impl super::MirBuilder {
         self.current_function = saved_function;
         self.current_block = saved_block;
         self.variable_map = saved_var_map;
-        self.value_gen = saved_value_gen;
         // Restore static box context
         self.current_static_box = saved_static_ctx;
         Ok(())