diff --git a/sixtyfps_compiler/builtin_macros.rs b/sixtyfps_compiler/builtin_macros.rs
index 20d1abe36..e4db53c97 100644
--- a/sixtyfps_compiler/builtin_macros.rs
+++ b/sixtyfps_compiler/builtin_macros.rs
@@ -179,7 +179,6 @@ fn to_debug_string(
     match &ty {
         Type::Invalid => Expression::Invalid,
         Type::Void
-        | Type::InferredGenericType
         | Type::InferredCallback
         | Type::InferredProperty
         | Type::Component(_)
diff --git a/sixtyfps_compiler/expression_tree.rs b/sixtyfps_compiler/expression_tree.rs
index a63d576dc..0b80cb636 100644
--- a/sixtyfps_compiler/expression_tree.rs
+++ b/sixtyfps_compiler/expression_tree.rs
@@ -128,7 +128,7 @@ impl BuiltinFunction {
             },
             BuiltinFunction::ArrayLength => Type::Function {
                 return_type: Box::new(Type::Int32),
-                args: vec![Type::Array(Box::new(Type::InferredGenericType))],
+                args: vec![Type::Model],
             },
             BuiltinFunction::Rgb => Type::Function {
                 return_type: Box::new(Type::Color),
@@ -991,7 +991,6 @@ impl Expression {
     pub fn default_value_for_type(ty: &Type) -> Expression {
         match ty {
             Type::Invalid
-            | Type::InferredGenericType
             | Type::Component(_)
             | Type::Builtin(_)
             | Type::Native(_)
diff --git a/sixtyfps_compiler/generator/cpp.rs b/sixtyfps_compiler/generator/cpp.rs
index 5ef8a6a2d..5721531e1 100644
--- a/sixtyfps_compiler/generator/cpp.rs
+++ b/sixtyfps_compiler/generator/cpp.rs
@@ -1628,7 +1628,7 @@ fn compile_expression(
                 "[](const sixtyfps::Image &img) { return img.size(); }".into()
             }
             BuiltinFunction::ArrayLength => {
-                "[](const sixtyfps::Model &model) { return (int) model.row_count(); }".into()
+                "[](const auto &model) { return (int) model.row_count(); }".into()
             }
             BuiltinFunction::Rgb => {
                 "[](int r, int g, int b, float a) {{ return sixtyfps::Color::from_argb_uint8(std::clamp(a * 255., 0., 255.), std::clamp(r, 0, 255), std::clamp(g, 0, 255), std::clamp(b, 0, 255)); }}".into()
diff --git a/sixtyfps_compiler/langtype.rs b/sixtyfps_compiler/langtype.rs
index 18797b347..7d58d604a 100644
--- a/sixtyfps_compiler/langtype.rs
+++ b/sixtyfps_compiler/langtype.rs
@@ -76,14 +76,11 @@ pub enum Type {
 
     /// This is a `SharedArray<f32>`
     LayoutCache,
-
-    InferredGenericType,
 }
 
 impl core::cmp::PartialEq for Type {
     fn eq(&self, other: &Self) -> bool {
         match self {
-            Type::InferredGenericType => true,
             Type::Invalid => matches!(other, Type::Invalid),
             Type::Void => matches!(other, Type::Void),
             Type::InferredProperty => matches!(other, Type::InferredProperty),
@@ -127,7 +124,6 @@ impl core::cmp::PartialEq for Type {
 impl Display for Type {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Type::InferredGenericType => write!(f, "<_>"),
             Type::Invalid => write!(f, "<error>"),
             Type::Void => write!(f, "void"),
             Type::InferredProperty => write!(f, "?"),
@@ -473,7 +469,6 @@ impl Type {
             // Unit::Percent is special that it does not combine with other units like
             Type::Percent => None,
             Type::Angle => Some(Unit::Deg),
-            Type::InferredGenericType => None,
             Type::Invalid => None,
             Type::Void => None,
             Type::InferredProperty | Type::InferredCallback => None,