diff --git a/src/builtin/meta.rs b/src/builtin/meta.rs
index e0d93e5..5cc24af 100644
--- a/src/builtin/meta.rs
+++ b/src/builtin/meta.rs
@@ -209,12 +209,12 @@ fn get_function(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value
         },
     };
 
-    Ok(Value::Function(func))
+    Ok(Value::FunctionRef(func))
 }
 
 fn call(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     let func = match parser.arg(&mut args, 0, "function")? {
-        Value::Function(f) => f,
+        Value::FunctionRef(f) => f,
         v => {
             return Err((
                 format!(
diff --git a/src/parse/value/eval.rs b/src/parse/value/eval.rs
index 6caf401..b516a71 100644
--- a/src/parse/value/eval.rs
+++ b/src/parse/value/eval.rs
@@ -160,7 +160,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
             v => panic!("{:?}", v),
         };
         Ok(match left {
-            Value::Map(..) | Value::Function(..) => {
+            Value::Map(..) | Value::FunctionRef(..) => {
                 return Err((
                     format!("{} isn't a valid CSS value.", left.inspect(self.span)?),
                     self.span,
@@ -223,7 +223,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
                     format!("{}{}{}", num, unit, right.to_css_string(self.span)?),
                     QuoteKind::None,
                 ),
-                Value::Map(..) | Value::Function(..) => {
+                Value::Map(..) | Value::FunctionRef(..) => {
                     return Err((
                         format!("{} isn't a valid CSS value.", right.inspect(self.span)?),
                         self.span,
@@ -329,7 +329,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
                     format!("{}{}-{}", num, unit, right.to_css_string(self.span)?),
                     QuoteKind::None,
                 ),
-                Value::Map(..) | Value::Function(..) => {
+                Value::Map(..) | Value::FunctionRef(..) => {
                     return Err((
                         format!("{} isn't a valid CSS value.", right.inspect(self.span)?),
                         self.span,
@@ -517,7 +517,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
                     QuoteKind::None,
                 ),
                 Value::Null => Value::String(format!("{}{}/", num, unit), QuoteKind::None),
-                Value::Map(..) | Value::Function(..) => {
+                Value::Map(..) | Value::FunctionRef(..) => {
                     return Err((
                         format!("{} isn't a valid CSS value.", right.inspect(self.span)?),
                         self.span,
diff --git a/src/value/mod.rs b/src/value/mod.rs
index 795d2c9..5b939aa 100644
--- a/src/value/mod.rs
+++ b/src/value/mod.rs
@@ -36,7 +36,7 @@ pub(crate) enum Value {
     Map(SassMap),
     ArgList(Vec<Spanned<Value>>),
     /// Returned by `get-function()`
-    Function(SassFunction),
+    FunctionRef(SassFunction),
 }
 
 fn visit_quoted_string(buf: &mut String, force_double_quote: bool, string: &str) {
@@ -130,7 +130,7 @@ impl Value {
                 }
                 _ => Cow::owned(format!("{}{}", num, unit)),
             },
-            Self::Map(..) | Self::Function(..) => {
+            Self::Map(..) | Self::FunctionRef(..) => {
                 return Err((
                     format!("{} isn't a valid CSS value.", self.inspect(span)?),
                     span,
@@ -222,7 +222,7 @@ impl Value {
             Self::String(..) | Self::Important => "string",
             Self::Dimension(..) => "number",
             Self::List(..) => "list",
-            Self::Function(..) => "function",
+            Self::FunctionRef(..) => "function",
             Self::ArgList(..) => "arglist",
             Self::True | Self::False => "bool",
             Self::Null => "null",
@@ -277,7 +277,7 @@ impl Value {
                         .join(sep.as_str()),
                 ),
             }),
-            Value::Function(f) => Cow::owned(format!("get-function(\"{}\")", f.name())),
+            Value::FunctionRef(f) => Cow::owned(format!("get-function(\"{}\")", f.name())),
             Value::Null => Cow::const_str("null"),
             Value::Map(map) => Cow::owned(format!(
                 "({})",