diff --git a/include/vrv/trill.h b/include/vrv/trill.h
index da61ec3d259..5581f8c4e62 100644
--- a/include/vrv/trill.h
+++ b/include/vrv/trill.h
@@ -26,6 +26,7 @@ namespace vrv {
 class Trill : public ControlElement,
               public TimeSpanningInterface,
               public AttColor,
+              public AttEnclosingChars,
               public AttExtender,
               public AttExtSymAuth,
               public AttExtSymNames,
diff --git a/src/iomei.cpp b/src/iomei.cpp
index 3c0e5c5836d..ccc5f74e00e 100644
--- a/src/iomei.cpp
+++ b/src/iomei.cpp
@@ -2258,6 +2258,7 @@ void MEIOutput::WriteTrill(pugi::xml_node currentNode, Trill *trill)
     this->WriteControlElement(currentNode, trill);
     this->WriteTimeSpanningInterface(currentNode, trill);
     trill->WriteColor(currentNode);
+    trill->WriteEnclosingChars(currentNode);
     trill->WriteExtender(currentNode);
     trill->WriteExtSymAuth(currentNode);
     trill->WriteExtSymNames(currentNode);
@@ -5957,6 +5958,7 @@ bool MEIInput::ReadTrill(Object *parent, pugi::xml_node trill)
 
     this->ReadTimeSpanningInterface(trill, vrvTrill);
     vrvTrill->ReadColor(trill);
+    vrvTrill->ReadEnclosingChars(trill);
     vrvTrill->ReadExtender(trill);
     vrvTrill->ReadExtSymAuth(trill);
     vrvTrill->ReadExtSymNames(trill);
diff --git a/src/trill.cpp b/src/trill.cpp
index 8d6b762ff39..2236b64ea01 100644
--- a/src/trill.cpp
+++ b/src/trill.cpp
@@ -30,6 +30,7 @@ Trill::Trill()
     : ControlElement(TRILL, "trill-")
     , TimeSpanningInterface()
     , AttColor()
+    , AttEnclosingChars()
     , AttExtender()
     , AttExtSymAuth()
     , AttExtSymNames()
@@ -40,6 +41,7 @@ Trill::Trill()
 {
     this->RegisterInterface(TimeSpanningInterface::GetAttClasses(), TimeSpanningInterface::IsInterface());
     this->RegisterAttClass(ATT_COLOR);
+    this->RegisterAttClass(ATT_ENCLOSINGCHARS);
     this->RegisterAttClass(ATT_EXTENDER);
     this->RegisterAttClass(ATT_EXTSYMAUTH);
     this->RegisterAttClass(ATT_EXTSYMNAMES);
@@ -58,6 +60,7 @@ void Trill::Reset()
     ControlElement::Reset();
     TimeSpanningInterface::Reset();
     this->ResetColor();
+    this->ResetEnclosingChars();
     this->ResetExtender();
     this->ResetExtSymAuth();
     this->ResetExtSymNames();