diff --git a/.clippy.toml b/.clippy.toml
index dc3347cd6..9eedc78ec 100644
--- a/.clippy.toml
+++ b/.clippy.toml
@@ -1,5 +1,5 @@
 allow-mixed-uninlined-format-args = false
-array-size-threshold = 262144
+array-size-threshold = 65538
 avoid-breaking-exported-api = false
 check-private-items = true
 cognitive-complexity-threshold = 24
diff --git a/src/uu/wc/src/count_fast.rs b/src/uu/wc/src/count_fast.rs
index 79c9f8227..b84ac634e 100644
--- a/src/uu/wc/src/count_fast.rs
+++ b/src/uu/wc/src/count_fast.rs
@@ -29,7 +29,7 @@ use libc::S_IFIFO;
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use uucore::pipes::{MAX_ROOTLESS_PIPE_SIZE, pipe, splice, splice_exact};
 
-const BUF_SIZE: usize = 256 * 1024;
+const BUF_SIZE: usize = 64 * 1024;
 
 /// This is a Linux-specific function to count the number of bytes using the
 /// `splice` system call, which is faster than using `read`.