diff --git a/src/builtins/ppc/builtins-ppc.cc b/src/builtins/ppc/builtins-ppc.cc
index a42cb9bebd..ca46e4095f 100644
--- a/src/builtins/ppc/builtins-ppc.cc
+++ b/src/builtins/ppc/builtins-ppc.cc
@@ -2599,7 +2599,10 @@ void Builtins::Generate_WasmCompileLazy(MacroAssembler* masm) {
     __ Push(kWasmInstanceRegister, kWasmCompileLazyFuncIndexRegister);
     // Load the correct CEntry builtin from the instance object.
     __ LoadP(r5, FieldMemOperand(kWasmInstanceRegister,
-                                 WasmInstanceObject::kCEntryStubOffset));
+                                 WasmInstanceObject::kIsolateRootOffset));
+    auto centry_id =
+        Builtins::kCEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit;
+    __ LoadP(r5, MemOperand(r5, IsolateData::builtin_slot_offset(centry_id)));
     // Initialize the JavaScript context with 0. CEntry will use it to
     // set the current context on the isolate.
     __ LoadSmiLiteral(cp, Smi::zero());
diff --git a/src/builtins/s390/builtins-s390.cc b/src/builtins/s390/builtins-s390.cc
index 854f31cece..5fcc24c415 100644
--- a/src/builtins/s390/builtins-s390.cc
+++ b/src/builtins/s390/builtins-s390.cc
@@ -2657,7 +2657,10 @@ void Builtins::Generate_WasmCompileLazy(MacroAssembler* masm) {
     __ Push(kWasmInstanceRegister, r7);
     // Load the correct CEntry builtin from the instance object.
     __ LoadP(r4, FieldMemOperand(kWasmInstanceRegister,
-                                 WasmInstanceObject::kCEntryStubOffset));
+                                 WasmInstanceObject::kIsolateRootOffset));
+    auto centry_id =
+        Builtins::kCEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit;
+    __ LoadP(r4, MemOperand(r4, IsolateData::builtin_slot_offset(centry_id)));
     // Initialize the JavaScript context with 0. CEntry will use it to
     // set the current context on the isolate.
     __ LoadSmiLiteral(cp, Smi::zero());