diff --git a/lib/std/Io.zig b/lib/std/Io.zig
index df5ef7aef8..1ccc9a4edc 100644
--- a/lib/std/Io.zig
+++ b/lib/std/Io.zig
@@ -462,9 +462,6 @@ pub const bitReader = @import("Io/bit_reader.zig").bitReader;
 pub const BitWriter = @import("Io/bit_writer.zig").BitWriter;
 pub const bitWriter = @import("Io/bit_writer.zig").bitWriter;
 
-pub const ChangeDetectionStream = @import("Io/change_detection_stream.zig").ChangeDetectionStream;
-pub const changeDetectionStream = @import("Io/change_detection_stream.zig").changeDetectionStream;
-
 pub const FindByteWriter = @import("Io/find_byte_writer.zig").FindByteWriter;
 pub const findByteWriter = @import("Io/find_byte_writer.zig").findByteWriter;
 
diff --git a/lib/std/Io/change_detection_stream.zig b/lib/std/Io/change_detection_stream.zig
deleted file mode 100644
index d9da1c4a0e..0000000000
--- a/lib/std/Io/change_detection_stream.zig
+++ /dev/null
@@ -1,55 +0,0 @@
-const std = @import("../std.zig");
-const io = std.io;
-const mem = std.mem;
-const assert = std.debug.assert;
-
-/// Used to detect if the data written to a stream differs from a source buffer
-pub fn ChangeDetectionStream(comptime WriterType: type) type {
-    return struct {
-        const Self = @This();
-        pub const Error = WriterType.Error;
-        pub const Writer = io.GenericWriter(*Self, Error, write);
-
-        anything_changed: bool,
-        underlying_writer: WriterType,
-        source_index: usize,
-        source: []const u8,
-
-        pub fn writer(self: *Self) Writer {
-            return .{ .context = self };
-        }
-
-        fn write(self: *Self, bytes: []const u8) Error!usize {
-            if (!self.anything_changed) {
-                const end = self.source_index + bytes.len;
-                if (end > self.source.len) {
-                    self.anything_changed = true;
-                } else {
-                    const src_slice = self.source[self.source_index..end];
-                    self.source_index += bytes.len;
-                    if (!mem.eql(u8, bytes, src_slice)) {
-                        self.anything_changed = true;
-                    }
-                }
-            }
-
-            return self.underlying_writer.write(bytes);
-        }
-
-        pub fn changeDetected(self: *Self) bool {
-            return self.anything_changed or (self.source_index != self.source.len);
-        }
-    };
-}
-
-pub fn changeDetectionStream(
-    source: []const u8,
-    underlying_writer: anytype,
-) ChangeDetectionStream(@TypeOf(underlying_writer)) {
-    return ChangeDetectionStream(@TypeOf(underlying_writer)){
-        .anything_changed = false,
-        .underlying_writer = underlying_writer,
-        .source_index = 0,
-        .source = source,
-    };
-}