diff --git a/lib/parser/index.js b/lib/parser/index.js
index e2cd71e9..3a51d8c2 100644
--- a/lib/parser/index.js
+++ b/lib/parser/index.js
@@ -964,11 +964,13 @@ function getVarFunctionBody() {
     var node = [getInfo(pos), NodeType.FunctionBodyType];
 
     readSC(node);
-    node.push(readIdent(true));
+    node.push(getIdentifier(true));
 
     if (pos < tokens.length && tokens[pos].type === TokenType.Comma) {
-        pos++;
-        node.push(getValue(true));
+        node.push(
+            getOperator(),
+            getValue(true)
+        );
         readSC(node);
     }
 
@@ -1155,8 +1157,8 @@ function getNamespacedIdentifier(checkColon) {
     ];
 }
 
-function getIdentifier() {
-    return [getInfo(pos), NodeType.IdentType, readIdent()];
+function getIdentifier(varAllowed) {
+    return [getInfo(pos), NodeType.IdentType, readIdent(varAllowed)];
 }
 
 // ! ws* important
diff --git a/test/fixture/compress/variables.min.css b/test/fixture/compress/variables.min.css
index f4ce79b6..f1bea9d1 100644
--- a/test/fixture/compress/variables.min.css
+++ b/test/fixture/compress/variables.min.css
@@ -1 +1 @@
-:root{--mainColor:#fb4c42;--test-var:5px}.test{color:var(--mainColor, blue);border: 1px solid var(--test-var)}a::after{content:" (" var(--external-link) ")"}.example7{--main-color: #c06;--accent-background:linear-gradient(to top,var(--main-color),white)}.example8{--one:calc(var(--two) + 20px);--two:calc(var(--one) - 20px)}one{--foo:10px}two{--bar:calc(var(--foo) + 10px)}three{--foo:calc(var(--bar) + 10px)}
+:root{--mainColor:#fb4c42;--test-var:5px}.test{color:var(--mainColor,#00f);border:1px solid var(--test-var)}a::after{content:" (" var(--external-link)")"}.example7{--main-color:#c06;--accent-background:linear-gradient(to top,var(--main-color),#fff)}.example8{--one:calc(var(--two)+ 20px);--two:calc(var(--one)- 20px)}one{--foo:10px}two{--bar:calc(var(--foo)+ 10px)}three{--foo:calc(var(--bar)+ 10px)}
diff --git a/test/fixture/internal/value.json b/test/fixture/internal/value.json
index 076db15c..fae4385b 100644
--- a/test/fixture/internal/value.json
+++ b/test/fixture/internal/value.json
@@ -352,6 +352,46 @@
             ]
         }
     },
+    "css variables": {
+        "source": "var(--foo, blue)",
+        "translate": "var(--foo,blue)",
+        "ast": {
+            "type": "Value",
+            "important": false,
+            "sequence": [
+                {
+                    "type": "Function",
+                    "name": "var",
+                    "arguments": [
+                        {
+                            "type": "Argument",
+                            "sequence": [
+                                {
+                                    "type": "Identifier",
+                                    "name": "--foo"
+                                }
+                            ]
+                        },
+                        {
+                            "type": "Argument",
+                            "sequence": [
+                                {
+                                    "type": "Value",
+                                    "important": false,
+                                    "sequence": [
+                                      {
+                                        "type": "Identifier",
+                                        "name": "blue"
+                                      }
+                                    ]
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    },
     "important.0": {
         "source": "#123456 !important",
         "translate": "#123456!important",