diff --git a/fixed_buffer_stream.zig b/fixed_buffer_stream.zig
index ec8491e7138cdada7deb812dcb777b0d6c2c9172..6db0980b738cba756b01995a9807e9f04e431018 100644
--- a/fixed_buffer_stream.zig
+++ b/fixed_buffer_stream.zig
@@ -86,6 +86,10 @@ pub fn FixedBufferStream(comptime Buffer: type) type {
             };
         }
 
+        pub fn written(self: *Self) Buffer {
+            return self.buffer[0..self.pos];
+        }
+
         pub fn rest(self: *Self) Buffer {
             return self.buffer[self.pos..];
         }