diff --git a/crates/oxc_transformer/src/context.rs b/crates/oxc_transformer/src/context.rs
index 12963d856dc1f..693cff88cd070 100644
--- a/crates/oxc_transformer/src/context.rs
+++ b/crates/oxc_transformer/src/context.rs
@@ -13,7 +13,7 @@ use crate::{
         statement_injector::StatementInjectorStore, top_level_statements::TopLevelStatementsStore,
         var_declarations::VarDeclarationsStore,
     },
-    Module, TransformOptions,
+    CompilerAssumptions, Module, TransformOptions,
 };
 
 pub struct TransformCtx<'a> {
@@ -31,6 +31,9 @@ pub struct TransformCtx<'a> {
 
     pub module: Module,
 
+    #[expect(dead_code)]
+    pub assumptions: CompilerAssumptions,
+
     // Helpers
     /// Manage helper loading
     pub helper_loader: HelperLoaderStore<'a>,
@@ -61,6 +64,7 @@ impl<'a> TransformCtx<'a> {
             source_type: SourceType::default(),
             source_text: "",
             module: options.env.module,
+            assumptions: options.assumptions,
             helper_loader: HelperLoaderStore::new(&options.helper_loader),
             module_imports: ModuleImportsStore::new(),
             var_declarations: VarDeclarationsStore::new(),