diff --git a/ecsact/wasm/detail/guest_imports/env.hh b/ecsact/wasm/detail/guest_imports/env.hh
index 299bec1..31fdb97 100644
--- a/ecsact/wasm/detail/guest_imports/env.hh
+++ b/ecsact/wasm/detail/guest_imports/env.hh
@@ -150,6 +150,20 @@ const auto guest_env_module_imports = allowed_guest_imports_t{
 			};
 		},
 	},
+	{
+		"ecsact_system_execution_context_stream_toggle",
+		[]() -> minst_import_resolve_func {
+			return {
+				wasm_functype_new_4_0(
+					wasm_valtype_new(WASM_I32), // context
+					wasm_valtype_new(WASM_I32), // component_id
+					wasm_valtype_new(WASM_I32), // streaming_enabled
+					wasm_valtype_new(WASM_I32) // indexed_fields
+				),
+				&wasm_ecsact_system_execution_context_stream_toggle,
+			};
+		},
+	},
 };
 
 } // namespace ecsact::wasm::detail
diff --git a/ecsact/wasm/detail/wasm_ecsact_system_execution.cc b/ecsact/wasm/detail/wasm_ecsact_system_execution.cc
index 5c63bc6..cb99d24 100644
--- a/ecsact/wasm/detail/wasm_ecsact_system_execution.cc
+++ b/ecsact/wasm/detail/wasm_ecsact_system_execution.cc
@@ -290,3 +290,21 @@ wasm_trap_t* wasm_ecsact_system_execution_context_entity(
 
 	return nullptr;
 }
+
+wasm_trap_t* wasm_ecsact_system_execution_context_stream_toggle(
+	const wasm_val_vec_t* args,
+	wasm_val_vec_t*       results
+) {
+	debug_trace_method("ecsact_system_execution_context_stream_toggle");
+
+	auto ctx = get_execution_context(args->data[0]);
+	auto memory = get_execution_context_memory(args->data[0]);
+
+	ecsact_system_execution_context_add(
+		ctx,
+		ecsact_id_from_wasm_i32<ecsact_component_like_id>(args->data[1]),
+		get_const_void_ptr(args->data[2], memory)
+	);
+
+	return nullptr;
+}
diff --git a/ecsact/wasm/detail/wasm_ecsact_system_execution.h b/ecsact/wasm/detail/wasm_ecsact_system_execution.h
index b88a3ff..9f66bf4 100644
--- a/ecsact/wasm/detail/wasm_ecsact_system_execution.h
+++ b/ecsact/wasm/detail/wasm_ecsact_system_execution.h
@@ -65,4 +65,9 @@ wasm_trap_t* wasm_ecsact_system_execution_context_entity(
 	wasm_val_vec_t*       results
 );
 
+wasm_trap_t* wasm_ecsact_system_execution_context_stream_toggle(
+	const wasm_val_vec_t* args,
+	wasm_val_vec_t*       results
+);
+
 #endif // WASM_ECSACT_SYSTEM_EXECUTION__H