diff --git a/lib/codegen/src/binemit/memorysink.rs b/lib/codegen/src/binemit/memorysink.rs
index 34380d2464..d25513d27a 100644
--- a/lib/codegen/src/binemit/memorysink.rs
+++ b/lib/codegen/src/binemit/memorysink.rs
@@ -84,6 +84,7 @@ impl<'a> CodeSink for MemoryCodeSink<'a> {
 
     fn put2(&mut self, x: u16) {
         unsafe {
+            #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
             write_unaligned(self.data.offset(self.offset) as *mut u16, x);
         }
         self.offset += 2;
@@ -91,6 +92,7 @@ impl<'a> CodeSink for MemoryCodeSink<'a> {
 
     fn put4(&mut self, x: u32) {
         unsafe {
+            #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
             write_unaligned(self.data.offset(self.offset) as *mut u32, x);
         }
         self.offset += 4;
@@ -98,6 +100,7 @@ impl<'a> CodeSink for MemoryCodeSink<'a> {
 
     fn put8(&mut self, x: u64) {
         unsafe {
+            #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
             write_unaligned(self.data.offset(self.offset) as *mut u64, x);
         }
         self.offset += 8;
diff --git a/lib/simplejit/src/backend.rs b/lib/simplejit/src/backend.rs
index 497ac1bb15..5576c02e32 100644
--- a/lib/simplejit/src/backend.rs
+++ b/lib/simplejit/src/backend.rs
@@ -238,14 +238,17 @@ impl<'simple_jit_backend> Backend for SimpleJITBackend {
             match reloc {
                 Reloc::Abs4 => {
                     // TODO: Handle overflow.
+                    #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
                     unsafe { write_unaligned(at as *mut u32, what as u32) };
                 }
                 Reloc::Abs8 => {
+                    #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
                     unsafe { write_unaligned(at as *mut u64, what as u64) };
                 }
                 Reloc::X86PCRel4 => {
                     // TODO: Handle overflow.
                     let pcrel = ((what as isize) - (at as isize)) as i32;
+                    #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
                     unsafe { write_unaligned(at as *mut i32, pcrel) };
                 }
                 Reloc::X86GOTPCRel4 |
@@ -295,9 +298,11 @@ impl<'simple_jit_backend> Backend for SimpleJITBackend {
                     match reloc {
                         Reloc::Abs4 => {
                             // TODO: Handle overflow.
+                            #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
                             unsafe { write_unaligned(at as *mut u32, what as u32) };
                         }
                         Reloc::Abs8 => {
+                            #[cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
                             unsafe { write_unaligned(at as *mut u64, what as u64) };
                         }
                         Reloc::X86PCRel4 |