diff --git a/lml.cpp b/lml.cpp
index ce0ac0e..2e9aece 100644
--- a/lml.cpp
+++ b/lml.cpp
@@ -360,12 +360,15 @@ void Lml::Document::SerializeTo(std::string & string, size_t indentation) const
 		
 		if (!scalar.empty())
 		{
+			string.push_back('"');
 			string.append(scalar[0]);
+			string.push_back('"');
 
 			for (std::string const & scalarString : std::span<std::string const>{scalar.begin() + 1, scalar.end()})
 			{
-				string.append(", ");
+				string.append(", \"");
 				string.append(scalarString);
+				string.push_back('"');
 			}
 		}