diff --git a/parser/src/emitter.rs b/parser/src/emitter.rs
index 308bd93..0d2defa 100644
--- a/parser/src/emitter.rs
+++ b/parser/src/emitter.rs
@@ -263,7 +263,7 @@ fn need_quotes(string: &str) -> bool {
     || need_quotes_spaces(string)
     || string.contains(|character: char| {
         match character {
-            ':' | '{' | '}' | '[' | ']' | ',' | '&' | '*' | '#' | '?' | '|' | '-' | '<' | '>' | '=' | '!' | '%' | '@' | '`' | '\\' | '\0' ... '\x06' | '\t' | '\n' | '\r' | '\x0e' ... '\x1a' | '\x1c' ... '\x1f' => true,
+            ':' | '{' | '}' | '[' | ']' | ',' | '&' | '*' | '#' | '?' | '|' | '-' | '<' | '>' | '=' | '!' | '%' | '@' | '`' | '\"' | '\'' | '\\' | '\0' ... '\x06' | '\t' | '\n' | '\r' | '\x0e' ... '\x1a' | '\x1c' ... '\x1f' => true,
             _ => false,
         }
     })