diff --git a/ReactCommon/fabric/attributedstring/AttributedString.cpp b/ReactCommon/fabric/attributedstring/AttributedString.cpp
index 7d872e65e9c0e7..57120d063c4e86 100644
--- a/ReactCommon/fabric/attributedstring/AttributedString.cpp
+++ b/ReactCommon/fabric/attributedstring/AttributedString.cpp
@@ -18,7 +18,7 @@ using Fragments = AttributedString::Fragments;
 #pragma mark - Fragment
 
 std::string Fragment::AttachmentCharacter() {
-  return "\uFFFC"; // Unicode `OBJECT REPLACEMENT CHARACTER`
+  return u8"\uFFFC"; // Unicode `OBJECT REPLACEMENT CHARACTER`
 }
 
 bool Fragment::isAttachment() const {