1 files changed, 5 insertions, 1 deletions
diff --git a/lib/plum/binary_string.rb b/lib/plum/binary_string.rb
index ef7733a..8011ea6 100644
--- a/lib/plum/binary_string.rb
+++ b/lib/plum/binary_string.rb
@@ -37,7 +37,11 @@ module Plum
       alias push <<
 
       def shift(count)
-        slice!(0, count)
+        enc = self.encoding
+        force_encoding(Encoding::BINARY)
+        out = slice!(0, count)
+        force_encoding(enc)
+        out
       end
     end
   end