diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index 9aab22ed302d..2e0d020113c7 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -158,6 +158,9 @@ void AstNumberingVisitor::VisitVariableProxyReference(VariableProxy* node) {
     default:
       break;
   }
+  if (IsLexicalVariableMode(node->var()->mode())) {
+    DisableFullCodegenAndCrankshaft(kReferenceToLetOrConstVariable);
+  }
   node->set_base_id(ReserveIdRange(VariableProxy::num_ids()));
 }
 
diff --git a/src/bailout-reason.h b/src/bailout-reason.h
index d77a7db70011..4d1ff9124eb0 100644
--- a/src/bailout-reason.h
+++ b/src/bailout-reason.h
@@ -173,6 +173,7 @@ namespace internal {
   V(kReceivedInvalidReturnAddress, "Received invalid return address")          \
   V(kReferenceToAVariableWhichRequiresDynamicLookup,                           \
     "Reference to a variable which requires dynamic lookup")                   \
+  V(kReferenceToLetOrConstVariable, "Reference to let or const variable")      \
   V(kReferenceToGlobalLexicalVariable, "Reference to global lexical variable") \
   V(kReferenceToModuleVariable, "Reference to module-allocated variable")      \
   V(kReferenceToUninitializedVariable, "Reference to uninitialized variable")  \