diff --git a/lib/deflate.js b/lib/deflate.js
index 38635d7..7485539 100644
--- a/lib/deflate.js
+++ b/lib/deflate.js
@@ -28,8 +28,9 @@ var Z_DEFLATED  = 8;
 // return sliced buffer, trying to avoid new objects creation and mem copy
 function sliceBuf(buf, size) {
   if (buf.length === size) { return buf; }
-
-  return utils.typedOk() ? buf.subarray(0, size) : buf.slice(0, size);
+  if (utils.typedOk()) { return buf.subarray(0, size); }
+  buf.length = size;
+  return buf;
 }
 
 /**
diff --git a/lib/inflate.js b/lib/inflate.js
index 9715e10..ee3b486 100644
--- a/lib/inflate.js
+++ b/lib/inflate.js
@@ -10,8 +10,9 @@ var zstream = require('./zlib/zstream');
 // return sliced buffer, trying to avoid new objects creation and mem copy
 function sliceBuf(buf, size) {
   if (buf.length === size) { return buf; }
-
-  return utils.typedOk() ? buf.subarray(0, size) : buf.slice(0, size);
+  if (utils.typedOk()) { return buf.subarray(0, size); }
+  buf.length = size;
+  return buf;
 }
 
 /**