diff --git a/src/parse/args.rs b/src/parse/args.rs
index adad512..ea22cc4 100644
--- a/src/parse/args.rs
+++ b/src/parse/args.rs
@@ -7,7 +7,10 @@ use crate::{
     common::QuoteKind,
     error::SassResult,
     scope::Scope,
-    utils::{peek_ident_no_interpolation, peek_whitespace_or_comment, read_until_closing_paren},
+    utils::{
+        peek_ident_no_interpolation, peek_whitespace_or_comment, read_until_closing_paren,
+        read_until_closing_quote, read_until_newline,
+    },
     value::Value,
     Token,
 };
@@ -67,6 +70,27 @@ impl<'a> Parser<'a> {
                                 default.push(self.toks.next().unwrap());
                                 default.extend(read_until_closing_paren(self.toks)?);
                             }
+                            '/' => {
+                                let next = self.toks.next().unwrap();
+                                match self.toks.peek() {
+                                    Some(Token { kind: '/', .. }) => read_until_newline(self.toks),
+                                    _ => default.push(next),
+                                };
+                                continue;
+                            }
+                            q @ '"' | q @ '\'' => {
+                                let q = *q;
+                                default.push(self.toks.next().unwrap());
+                                default.extend(read_until_closing_quote(self.toks, q)?);
+                                continue;
+                            }
+                            '\\' => {
+                                default.push(self.toks.next().unwrap());
+                                default.push(match self.toks.next() {
+                                    Some(tok) => tok,
+                                    None => continue,
+                                });
+                            }
                             _ => default.push(self.toks.next().unwrap()),
                         }
                     }
diff --git a/tests/args.rs b/tests/args.rs
index adde390..6d5f356 100644
--- a/tests/args.rs
+++ b/tests/args.rs
@@ -187,3 +187,14 @@ test!(
     }",
     "a {\n  color: kwd-y;\n}\n"
 );
+test!(
+    quoted_string_as_default_argument_value,
+    r#"@function foo($font-family: 'Roboto, "Helvetica Neue", sans-serif') {
+        @return $font-family;
+    }
+
+    a {
+        color: foo();
+    }"#,
+    "a {\n  color: 'Roboto, \"Helvetica Neue\", sans-serif';\n}\n"
+);