diff --git a/ets2panda/ir/base/classProperty.cpp b/ets2panda/ir/base/classProperty.cpp
index 7a07160d7b9125d8f7f12ac3ae74529346f9d1e1..a2217e79f9d9b55cfc1cc7632c308dfcfbf36d12 100644
--- a/ets2panda/ir/base/classProperty.cpp
+++ b/ets2panda/ir/base/classProperty.cpp
@@ -110,6 +110,10 @@ void ClassProperty::Dump(ir::SrcDumper *dumper) const
         key_->Dump(dumper);
     }
 
+    if (IsOptionalDeclaration()) {
+        dumper->Add("?");
+    }
+
     if (typeAnnotation_ != nullptr) {
         dumper->Add(": ");
         typeAnnotation_->Dump(dumper);
@@ -121,6 +125,7 @@ void ClassProperty::Dump(ir::SrcDumper *dumper) const
     }
 
     dumper->Add(";");
+    dumper->Endl();
 }
 
 void ClassProperty::Compile(compiler::PandaGen *pg) const
diff --git a/ets2panda/ir/ets/etsParameterExpression.cpp b/ets2panda/ir/ets/etsParameterExpression.cpp
index 4b15f70473ec16f9418ca5f77d5d922e25412676..df9262725b6fcfd50baaa98f671cbbb20eedd1d6 100644
--- a/ets2panda/ir/ets/etsParameterExpression.cpp
+++ b/ets2panda/ir/ets/etsParameterExpression.cpp
@@ -168,11 +168,8 @@ void ETSParameterExpression::Dump(ir::SrcDumper *const dumper) const
             }
         }
         if (initializer_ != nullptr) {
-            ASSERT(initializer_->IsNumberLiteral());
-            if (initializer_->AsNumberLiteral()->Str().Length() > 0) {
-                dumper->Add(" = ");
-                initializer_->Dump(dumper);
-            }
+            dumper->Add(" = ");
+            initializer_->Dump(dumper);
         }
     }
 }