diff --git a/src/ir/analysis/derive.rs b/src/ir/analysis/derive.rs
index dac9558691..fa4ce795da 100644
--- a/src/ir/analysis/derive.rs
+++ b/src/ir/analysis/derive.rs
@@ -138,9 +138,8 @@ impl<'ctx> CannotDerive<'ctx> {
     }
 
     fn constrain_type(&mut self, item: &Item, ty: &Type) -> CanDerive {
-        if !self.ctx.options().derive_ignore_blocklist &&
-            !self.ctx.allowlisted_items().contains(&item.id())
-        {            trace!(
+        if !self.ctx.allowlisted_items().contains(&item.id()) {
+            trace!(
                 "    cannot derive {} for blocklisted type",
                 self.derive_trait
             );
diff --git a/src/lib.rs b/src/lib.rs
index 804b965dae..0716b42f47 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -549,10 +549,6 @@ impl Builder {
             output_vector.push("--respect-cxx-access-specs".into());
         }
 
-        if self.options.derive_ignore_blocklist {
-            output_vector.push("--derive-ignore-blocklist".into());
-        }
-
         // Add clang arguments
 
         output_vector.push("--".into());
@@ -1572,12 +1568,6 @@ impl Builder {
         self.options.respect_cxx_access_specs = doit;
         self
     }
-
-    /// Ignore the type blocklist when computing type derive information
-    pub fn derive_ignore_blocklist(mut self, doit: bool) -> Self {
-        self.options.derive_ignore_blocklist = doit;
-        self
-    }
 }
 
 /// Configuration options for generated bindings.
@@ -1869,9 +1859,6 @@ struct BindgenOptions {
     /// Only make generated bindings `pub` if the items would be publically accessible
     /// by C++.
     respect_cxx_access_specs: bool,
-
-    /// Ignore the type blocklist when computing type derive information
-    derive_ignore_blocklist: bool,
 }
 
 /// TODO(emilio): This is sort of a lie (see the error message that results from
@@ -2009,7 +1996,6 @@ impl Default for BindgenOptions {
             wasm_import_module_name: None,
             dynamic_library_name: None,
             respect_cxx_access_specs: false,
-            derive_ignore_blocklist: false,
         }
     }
 }
diff --git a/src/options.rs b/src/options.rs
index f1c26fd8ed..2289ad09bd 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -503,9 +503,6 @@ where
             Arg::with_name("respect-cxx-access-specs")
                 .long("respect-cxx-access-specs")
                 .help("Makes generated bindings `pub` only for items if the items are publically accessible in C++."),
-            Arg::with_name("derive-ignore-blocklist")
-                .long("derive-ignore-blocklist")
-                .help("Ignore the type blocklist when computing type derive information"),
         ]) // .args()
         .get_matches_from(args);
 
@@ -932,10 +929,6 @@ where
         builder = builder.respect_cxx_access_specs(true);
     }
 
-    if matches.is_present("derive-ignore-blocklist") {
-        builder = builder.derive_ignore_blocklist(true);
-    }
-
     let verbose = matches.is_present("verbose");
 
     Ok((builder, output, verbose))
diff --git a/tests/expectations/tests/issue-1454.rs b/tests/expectations/tests/issue-1454.rs
deleted file mode 100644
index e8df8da92d..0000000000
--- a/tests/expectations/tests/issue-1454.rs
+++ /dev/null
@@ -1,81 +0,0 @@
-#![allow(
-    dead_code,
-    non_snake_case,
-    non_camel_case_types,
-    non_upper_case_globals
-)]
-
-#[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
-pub struct rlimit;
-
-#[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
-pub struct my_rlimit_conf {
-    pub core: rlimit,
-    pub cpu: rlimit,
-    pub data: rlimit,
-    pub fsize: rlimit,
-}
-#[test]
-fn bindgen_test_layout_my_rlimit_conf() {
-    assert_eq!(
-        ::std::mem::size_of::<my_rlimit_conf>(),
-        0usize,
-        concat!("Size of: ", stringify!(my_rlimit_conf))
-    );
-    assert_eq!(
-        ::std::mem::align_of::<my_rlimit_conf>(),
-        1usize,
-        concat!("Alignment of ", stringify!(my_rlimit_conf))
-    );
-    assert_eq!(
-        unsafe {
-            &(*(::std::ptr::null::<my_rlimit_conf>())).core as *const _ as usize
-        },
-        0usize,
-        concat!(
-            "Offset of field: ",
-            stringify!(my_rlimit_conf),
-            "::",
-            stringify!(core)
-        )
-    );
-    assert_eq!(
-        unsafe {
-            &(*(::std::ptr::null::<my_rlimit_conf>())).cpu as *const _ as usize
-        },
-        0usize,
-        concat!(
-            "Offset of field: ",
-            stringify!(my_rlimit_conf),
-            "::",
-            stringify!(cpu)
-        )
-    );
-    assert_eq!(
-        unsafe {
-            &(*(::std::ptr::null::<my_rlimit_conf>())).data as *const _ as usize
-        },
-        0usize,
-        concat!(
-            "Offset of field: ",
-            stringify!(my_rlimit_conf),
-            "::",
-            stringify!(data)
-        )
-    );
-    assert_eq!(
-        unsafe {
-            &(*(::std::ptr::null::<my_rlimit_conf>())).fsize as *const _
-                as usize
-        },
-        0usize,
-        concat!(
-            "Offset of field: ",
-            stringify!(my_rlimit_conf),
-            "::",
-            stringify!(fsize)
-        )
-    );
-}
diff --git a/tests/headers/issue-1454.h b/tests/headers/issue-1454.h
deleted file mode 100644
index ce137b9238..0000000000
--- a/tests/headers/issue-1454.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// bindgen-flags: --no-recursive-allowlist --allowlist-type "my_rlimit_conf" --derive-ignore-blocklist --raw-line "#[repr(C)] #[derive(Debug, Default, Copy, Clone)] pub struct rlimit;"
-
-struct rlimit {};
-
-typedef struct
-{
-    struct rlimit core;
-    struct rlimit cpu;
-    struct rlimit data;
-    struct rlimit fsize;
-}
-my_rlimit_conf;