diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 140da6a..f443855 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -621,7 +621,7 @@
 DEFINE_BOOL(wasm_shared_engine, true,
             "shares one wasm engine between all isolates within a process")
 DEFINE_IMPLICATION(future, wasm_shared_engine)
-DEFINE_BOOL(wasm_shared_code, false,
+DEFINE_BOOL(wasm_shared_code, true,
             "shares code underlying a wasm module when it is transferred")
 DEFINE_IMPLICATION(future, wasm_shared_code)
 DEFINE_BOOL(wasm_trap_handler, true,