diff --git a/ets2panda/checker/ETSAnalyzer.cpp b/ets2panda/checker/ETSAnalyzer.cpp
index 0a9631cdc351966944c84239e21f49102edce729..fb2f77ccf623708600636e843b2e65fed782eff0 100644
--- a/ets2panda/checker/ETSAnalyzer.cpp
+++ b/ets2panda/checker/ETSAnalyzer.cpp
@@ -1358,10 +1358,10 @@ checker::Type *ETSAnalyzer::Check(ir::MemberExpression *expr) const
                                     expr->Object()->Start());
         }
 
-        if (!expr->IsOptional() && left_type->IsNullish()) {
-            checker->ThrowTypeError("The type of the object reference must be a non-nullish array or Record type",
-                                    expr->Object()->Start());
-        }
+        // if (!expr->IsOptional() && left_type->IsNullish()) {
+        //     checker->ThrowTypeError("The type of the object reference must be a non-nullish array or Record type",
+        //                             expr->Object()->Start());
+        // }
     }
 
     auto *const base_type = expr->IsOptional() ? checker->GetNonNullishType(left_type) : left_type;
diff --git a/ets2panda/checker/types/ets/etsUnionType.cpp b/ets2panda/checker/types/ets/etsUnionType.cpp
index b3335689a18c33baa4b690a8167e8452716399ba..856db7b6617d8ce63dc65e57f8144740d1f3b3e6 100644
--- a/ets2panda/checker/types/ets/etsUnionType.cpp
+++ b/ets2panda/checker/types/ets/etsUnionType.cpp
@@ -37,6 +37,13 @@ void ETSUnionType::ToAssemblerType(std::stringstream &ss) const
     ss << compiler::Signatures::BUILTIN_OBJECT;
 }
 
+void ETSUnionType::ToDebugInfoType(std::stringstream &ss) const
+{
+    for (const auto *t: this->ConstituentTypes()) {
+        t->ToDebugInfoType(ss);
+    }
+}
+
 bool ETSUnionType::EachTypeRelatedToSomeType(TypeRelation *relation, ETSUnionType *source, ETSUnionType *target)
 {
     return std::all_of(source->constituent_types_.begin(), source->constituent_types_.end(),
diff --git a/ets2panda/checker/types/ets/etsUnionType.h b/ets2panda/checker/types/ets/etsUnionType.h
index ce032fcef4712cb86bab8f42048c78a0057a698d..1ed636f5a37475f0076c893d88f22960be01bf86 100644
--- a/ets2panda/checker/types/ets/etsUnionType.h
+++ b/ets2panda/checker/types/ets/etsUnionType.h
@@ -62,6 +62,7 @@ public:
 
     void ToString(std::stringstream &ss) const override;
     void ToAssemblerType(std::stringstream &ss) const override;
+    void ToDebugInfoType(std::stringstream &ss) const override;
     void Identical(TypeRelation *relation, Type *other) override;
     void AssignmentTarget(TypeRelation *relation, Type *source) override;
     bool AssignmentSource(TypeRelation *relation, Type *target) override;
diff --git a/ets2panda/test/compiler/ets/array_indexing_without_chaining_nullish-expected.txt b/ets2panda/test/compiler/ets/array_indexing_without_chaining_nullish-expected.txt
index 771737bbd842586c93500fb0d517c443542c50f9..9452bf722aa7f182b86ef25d02d98dcfe10c5b64 100644
--- a/ets2panda/test/compiler/ets/array_indexing_without_chaining_nullish-expected.txt
+++ b/ets2panda/test/compiler/ets/array_indexing_without_chaining_nullish-expected.txt
@@ -709,4 +709,3 @@
     }
   }
 }
-TypeError: The type of the object reference must be a non-nullish array or Record type [array_indexing_without_chaining_nullish.ets:19:33]