diff --git a/std/buffer.zig b/std/buffer.zig
index 9c968823b6..be69eafcfe 100644
--- a/std/buffer.zig
+++ b/std/buffer.zig
@@ -146,16 +146,6 @@ pub const Buffer = struct {
     pub fn ptr(self: &const Buffer) -> &u8 {
         return self.list.items.ptr;
     }
-
-    /// Returns a copy of this buffer's toSlice() contents
-    /// allocated exactly to size.
-    /// This method uses the provided allocator instead of
-    /// this object's own allocator to allocate the new array.
-    pub fn toSliceCopy(self: &Buffer, allocator: &Allocator) -> %[]u8 {
-        var result = try allocator.alloc(u8, self.len());
-        mem.copy(u8, result, self.toSliceConst());
-        return result;
-    }
 };
 
 test "simple Buffer" {
@@ -178,12 +168,3 @@ test "simple Buffer" {
     try buf2.resize(4);
     assert(buf.startsWith(buf2.toSliceConst()));
 }
-
-test "Buffer.toSliceCopy" {
-    var buffer = try Buffer.init(debug.global_allocator, "abc");
-    var copy = try buffer.toSliceCopy(debug.global_allocator);
-    buffer.shrink(0);
-    try buffer.append("xyz");
-    assert(mem.eql(u8, buffer.toSliceConst(), "xyz"));
-    assert(mem.eql(u8, copy, "abc"));
-}