1 files changed, 2 insertions, 2 deletions
diff --git a/lib/paperclip/gif_transcoder.rb b/lib/paperclip/gif_transcoder.rb
index d14465c01..f385b00a3 100644
--- a/lib/paperclip/gif_transcoder.rb
+++ b/lib/paperclip/gif_transcoder.rb
@@ -57,7 +57,7 @@ class GifReader
           end
 
           # Skip lzw min code size
-          raise InvalidValue unless s.read(1).unpack('C')[0] >= 2
+          raise InvalidValue unless s.read(1).unpack1('C') >= 2
 
           # Skip image data sub-blocks
           skip_sub_blocks!(s)
@@ -77,7 +77,7 @@ class GifReader
   private
 
   def skip_extension_block!(file)
-    if EXTENSION_LABELS.include?(file.read(1).unpack('C')[0])
+    if EXTENSION_LABELS.include?(file.read(1).unpack1('C'))
       block_size, = file.read(1).unpack('C')
       file.seek(block_size, IO::SEEK_CUR)
     end