diff --git a/crates/oxide_compiler/src/passes/expr/assignment.rs b/crates/oxide_compiler/src/passes/expr/assignment.rs
index 36ba4999..a1193838 100644
--- a/crates/oxide_compiler/src/passes/expr/assignment.rs
+++ b/crates/oxide_compiler/src/passes/expr/assignment.rs
@@ -28,7 +28,6 @@ impl Compiler {
             self.count_expression(&member.object, ctx);
             self.count_expression(&member.expression, ctx);
             self.count_expression(&assign.right, ctx);
-            ctx.alloc_reg();
             ctx.projected_pc += 1; // SET_PROP_DYNAMIC
         } else if let oxide_parser::AssignmentTarget::PrivateFieldExpression(member) = &assign.left {
             self.count_expression(&member.object, ctx);