diff --git a/lang/syn/src/codegen/accounts/constraints.rs b/lang/syn/src/codegen/accounts/constraints.rs
index 94380686..d8286eb7 100644
--- a/lang/syn/src/codegen/accounts/constraints.rs
+++ b/lang/syn/src/codegen/accounts/constraints.rs
@@ -216,7 +216,6 @@ pub fn generate_constraint_has_one(f: &Field, c: &ConstraintHasOne) -> proc_macr
     let field = match &f.ty {
         Ty::Loader(_) => quote! {#ident.load()?},
         Ty::AccountLoader(_) => quote! {#ident.load()?},
-        Ty::AccountLoaderDynamic(_) => quote! {#ident.load_fixed()?},
         _ => quote! {#ident},
     };
     let error = generate_custom_error(
diff --git a/lang/syn/src/lib.rs b/lang/syn/src/lib.rs
index 90cdce96..5aeac91b 100644
--- a/lang/syn/src/lib.rs
+++ b/lang/syn/src/lib.rs
@@ -358,21 +358,6 @@ impl Field {
                     }
                 }
             }
-            Ty::AccountLoaderDynamic(_) => {
-                if checked {
-                    quote! {
-                        #container_ty::try_from(
-                            &#field,
-                        ).map_err(|e| e.with_account_name(#field_str))?
-                    }
-                } else {
-                    quote! {
-                        #container_ty::try_from_unchecked(
-                            &#field,
-                        ).map_err(|e| e.with_account_name(#field_str))?
-                    }
-                }
-            }
             _ => {
                 if checked {
                     quote! {
@@ -404,9 +389,6 @@ impl Field {
             Ty::AccountLoader(_) => quote! {
                 anchor_lang::accounts::account_loader::AccountLoader
             },
-            Ty::AccountLoaderDynamic(_) => quote! {
-                crate::state::AccountLoaderDynamic
-            },
             Ty::Loader(_) => quote! {
                 anchor_lang::accounts::loader::Loader
             },
@@ -461,12 +443,6 @@ impl Field {
                     #ident
                 }
             }
-            Ty::AccountLoaderDynamic(ty) => {
-                let ident = &ty.account_type_path;
-                quote! {
-                    #ident
-                }
-            }
             Ty::Loader(ty) => {
                 let ident = &ty.account_type_path;
                 quote! {
@@ -533,7 +509,6 @@ pub enum Ty {
     ProgramAccount(ProgramAccountTy),
     Loader(LoaderTy),
     AccountLoader(AccountLoaderTy),
-    AccountLoaderDynamic(AccountLoaderDynamicTy),
     CpiAccount(CpiAccountTy),
     Sysvar(SysvarTy),
     Account(AccountTy),
@@ -585,12 +560,6 @@ pub struct AccountLoaderTy {
     pub account_type_path: TypePath,
 }
 
-#[derive(Debug, PartialEq)]
-pub struct AccountLoaderDynamicTy {
-    // The struct type of the account.
-    pub account_type_path: TypePath,
-}
-
 #[derive(Debug, PartialEq)]
 pub struct LoaderTy {
     // The struct type of the account.
diff --git a/lang/syn/src/parser/accounts/constraints.rs b/lang/syn/src/parser/accounts/constraints.rs
index 7fe17e83..ac71a680 100644
--- a/lang/syn/src/parser/accounts/constraints.rs
+++ b/lang/syn/src/parser/accounts/constraints.rs
@@ -886,9 +886,7 @@ impl<'ty> ConstraintGroupBuilder<'ty> {
             && !matches!(self.f_ty, Some(Ty::Account(_)))
             && !matches!(self.f_ty, Some(Ty::Loader(_)))
             && !matches!(self.f_ty, Some(Ty::AccountLoader(_)))
-            && !matches!(self.f_ty, Some(Ty::AccountLoaderDynamic(_)))
         {
-            println!("{:?}", self.f_ty);
             return Err(ParseError::new(
                 c.span(),
                 "close must be on an Account, ProgramAccount, or Loader",
diff --git a/lang/syn/src/parser/accounts/mod.rs b/lang/syn/src/parser/accounts/mod.rs
index ad711090..5d9d19ba 100644
--- a/lang/syn/src/parser/accounts/mod.rs
+++ b/lang/syn/src/parser/accounts/mod.rs
@@ -239,7 +239,6 @@ fn is_field_primitive(f: &syn::Field) -> ParseResult<bool> {
             | "CpiState"
             | "Loader"
             | "AccountLoader"
-            | "AccountLoaderDynamic"
             | "Account"
             | "Program"
             | "Signer"
@@ -264,9 +263,6 @@ fn parse_ty(f: &syn::Field) -> ParseResult<Ty> {
         "UncheckedAccount" => Ty::UncheckedAccount,
         "Loader" => Ty::Loader(parse_program_account_zero_copy(&path)?),
         "AccountLoader" => Ty::AccountLoader(parse_program_account_loader(&path)?),
-        "AccountLoaderDynamic" => {
-            Ty::AccountLoaderDynamic(parse_program_mango_account_loader(&path)?)
-        }
         "Account" => Ty::Account(parse_account_ty(&path)?),
         "Program" => Ty::Program(parse_program_ty(&path)?),
         "Signer" => Ty::Signer,
@@ -341,12 +337,6 @@ fn parse_program_account_loader(path: &syn::Path) -> ParseResult<AccountLoaderTy
         account_type_path: account_ident,
     })
 }
-fn parse_program_mango_account_loader(path: &syn::Path) -> ParseResult<AccountLoaderDynamicTy> {
-    let account_ident = parse_account(path)?;
-    Ok(AccountLoaderDynamicTy {
-        account_type_path: account_ident,
-    })
-}
 
 fn parse_account_ty(path: &syn::Path) -> ParseResult<AccountTy> {
     let account_type_path = parse_account(path)?;