diff --git a/scss.inc.php b/scss.inc.php
index 30d872d9..f9bc9008 100644
--- a/scss.inc.php
+++ b/scss.inc.php
@@ -2734,16 +2734,13 @@ protected function parseChunk() {
 			$this->literal(":") &&
 			$this->valueList($value) && $this->end())
 		{
-			$defaultVar = false;
 			// check for !default
-			if ($value[0] == "list") {
-				$def = end($value[2]);
-				if ($def[0] == "keyword" && $def[1] == "!default") {
-					array_pop($value[2]);
-					$value = $this->flattenList($value);
-					$defaultVar = true;
-				}
+			$defaultVar = $value[0] == "list" && $this->stripDefault($value);
+			if (!$defaultVar && isset($value[2]) && is_array($value[2])) {
+				$nestedValue = end($value[2]);
+				$defaultVar = is_array($nestedValue) && $nestedValue[0] == "list" && $this->stripDefault($value[2][count($value[2]) - 1]);
 			}
+
 			$this->append(array("assign", $name, $value, $defaultVar), $s);
 			return true;
 		} else {
@@ -2817,6 +2814,17 @@ protected function parseChunk() {
 		return false;
 	}
 
+	protected function stripDefault(&$value) {
+		$def = end($value[2]);
+		if ($def[0] == "keyword" && $def[1] == "!default") {
+			array_pop($value[2]);
+			$value = $this->flattenList($value);
+			return true;
+		}
+
+		return false;
+	}
+
 	protected function literal($what, $eatWhitespace = null) {
 		if (is_null($eatWhitespace)) $eatWhitespace = $this->eatWhiteDefault;
 
diff --git a/tests/inputs/variables.scss b/tests/inputs/variables.scss
index 3606b01e..bebd4dc7 100644
--- a/tests/inputs/variables.scss
+++ b/tests/inputs/variables.scss
@@ -41,3 +41,16 @@ del {
     color: $something;
 }
 
+$font-family-simple: Arial !default;
+$font-family-spaces: Helvetica Neue !default;
+$font-family-quotes: "Helvetica Neue" !default;
+$font-family-commas: Helvetica, Arial, sans-serif !default;
+$font-family-sans:      "Helvetica Neue", Helvetica, Arial, sans-serif !default;
+
+body {
+    font-family: $font-family-simple;
+    font-family: $font-family-spaces;
+    font-family: $font-family-quotes;
+    font-family: $font-family-commas;
+    font-family: $font-family-sans;
+}
diff --git a/tests/outputs/variables.css b/tests/outputs/variables.css
index 3cfed718..86763380 100644
--- a/tests/outputs/variables.css
+++ b/tests/outputs/variables.css
@@ -15,3 +15,10 @@ del {
   color: red; }
   del div pre {
     color: red; }
+
+body {
+  font-family: Arial;
+  font-family: Helvetica Neue;
+  font-family: "Helvetica Neue";
+  font-family: Helvetica, Arial, sans-serif;
+  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }