diff --git a/src/enc/brotli_bit_stream.rs b/src/enc/brotli_bit_stream.rs
index 2a7e6e2b..b49cd6a0 100755
--- a/src/enc/brotli_bit_stream.rs
+++ b/src/enc/brotli_bit_stream.rs
@@ -332,7 +332,7 @@ fn process_command_queue<'a, CmdProcessor: interface::CommandProcessor<'a>>(
                 // we have to divide some:
                 let (in_a, in_b) = tmp_inserts.split_at(btypel_sub as usize);
                 if in_a.len() != 0 {
-                    if let Some(_) = context_type {
+                    if context_type.is_some() {
                         command_queue.push_literals(&in_a);
                     } else if params.high_entropy_detection_quality == 0 {
                         command_queue.push_literals(&in_a);
@@ -351,7 +351,7 @@ fn process_command_queue<'a, CmdProcessor: interface::CommandProcessor<'a>>(
                     btypel_sub = 1u32 << 31;
                 }
             }
-            if let Some(_) = context_type {
+            if context_type.is_some() {
                 command_queue.push_literals(&tmp_inserts);
             } else if params.high_entropy_detection_quality == 0 {
                 command_queue.push_literals(&tmp_inserts);
diff --git a/src/enc/mod.rs b/src/enc/mod.rs
index 359c6912..bbbeee8c 100755
--- a/src/enc/mod.rs
+++ b/src/enc/mod.rs
@@ -333,7 +333,7 @@ where
                 next_out_offset = 0;
             }
             if result <= 0 {
-                if let Ok(_) = read_err {
+                if read_err.is_ok() {
                     read_err = Err(unexpected_eof_error_constant);
                 }
                 break;
diff --git a/src/ffi/compressor.rs b/src/ffi/compressor.rs
index ce008e40..3eb3bfd8 100755
--- a/src/ffi/compressor.rs
+++ b/src/ffi/compressor.rs
@@ -122,7 +122,7 @@ pub unsafe extern "C" fn BrotliEncoderDestroyInstance(state_ptr: *mut BrotliEnco
         return;
     }
     ::enc::encode::BrotliEncoderDestroyInstance(&mut (*state_ptr).compressor);
-    if let Some(_) = (*state_ptr).custom_allocator.alloc_func {
+    if (*state_ptr).custom_allocator.alloc_func.is_some() {
         if let Some(free_fn) = (*state_ptr).custom_allocator.free_func {
             let _to_free = core::ptr::read(state_ptr);
             let ptr = core::mem::transmute::<*mut BrotliEncoderState, *mut c_void>(state_ptr);
diff --git a/src/ffi/multicompress/mod.rs b/src/ffi/multicompress/mod.rs
index ee27f524..acfc69e9 100755
--- a/src/ffi/multicompress/mod.rs
+++ b/src/ffi/multicompress/mod.rs
@@ -296,7 +296,7 @@ impl panic::RefUnwindSafe for UnsafeUnwindBox {}
 pub unsafe extern "C" fn BrotliEncoderDestroyWorkPool(work_pool_ptr: *mut BrotliEncoderWorkPool) {
     let wpp = UnsafeUnwindBox(work_pool_ptr);
     if let Err(panic_err) = compressor::catch_panic(|| {
-        if let Some(_) = (*wpp.0).custom_allocator.alloc_func {
+        if (*wpp.0).custom_allocator.alloc_func.is_some() {
             if let Some(free_fn) = (*wpp.0).custom_allocator.free_func {
                 let _to_free = core::ptr::read(wpp.0);
                 let ptr = core::mem::transmute::<*mut BrotliEncoderWorkPool, *mut c_void>(wpp.0);