diff --git a/examples/json5-trailing-comma-formatter/README.md b/examples/json5-trailing-comma-formatter/README.md
index 82fe391..006b5f8 100644
--- a/examples/json5-trailing-comma-formatter/README.md
+++ b/examples/json5-trailing-comma-formatter/README.md
@@ -29,12 +29,12 @@ output
 // My Document
 {
     breakfast: [
-        bacon,
-        eggs,
-        spam,  // <-- a trailing comma will be added here
+        'bacon',
+        'eggs',
+        'spam',  // <-- a trailing comma will be added here
     ],
     objekt: {
-        nested: value, // <-- and here
+        nested: "value", // <-- and here
     }, // <--- and here
 }
 
diff --git a/examples/json5-trailing-comma-formatter/src/main.rs b/examples/json5-trailing-comma-formatter/src/main.rs
index fa3a05a..6d12a66 100644
--- a/examples/json5-trailing-comma-formatter/src/main.rs
+++ b/examples/json5-trailing-comma-formatter/src/main.rs
@@ -86,12 +86,12 @@ fn test() {
     let expected = String::from(r#"// My Document
 {
     breakfast: [
-        bacon,
-        eggs,
-        spam,  // <-- a trailing comma will be added here
+        'bacon',
+        'eggs',
+        'spam',  // <-- a trailing comma will be added here
     ],
     objekt: {
-        nested: value, // <-- and here
+        nested: "value", // <-- and here
     }, // <--- and here
 }"#);
     assert_eq!(res, expected)
diff --git a/src/rt/parser.rs b/src/rt/parser.rs
index 0a26c78..948a3b6 100644
--- a/src/rt/parser.rs
+++ b/src/rt/parser.rs
@@ -286,8 +286,12 @@ impl JSONValue {
             JSONValue::NaN => {String::from("Nan")}
             JSONValue::Hexadecimal(s) => {s.clone()}
             JSONValue::Bool(b) => b.to_string(),
-            JSONValue::DoubleQuotedString(s) => {s.clone()}
-            JSONValue::SingleQuotedString(s) => {s.clone()}
+            JSONValue::DoubleQuotedString(s) => {
+                format!("\"{s}\"")
+            }
+            JSONValue::SingleQuotedString(s) => {
+                format!("'{s}'")
+            }
             JSONValue::Unary { operator, value} => {
                 format!("{operator}{value}")
             }