diff --git a/examples/compress_file.rs b/examples/compress_file.rs
index 39ed8eed..be4b81e6 100644
--- a/examples/compress_file.rs
+++ b/examples/compress_file.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::GzEncoder;
 use flate2::Compression;
 use std::env::args;
diff --git a/examples/decompress_file.rs b/examples/decompress_file.rs
index 4f21d3fd..6b2ede95 100644
--- a/examples/decompress_file.rs
+++ b/examples/decompress_file.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread;
 use std::env::args;
 use std::fs::File;
diff --git a/examples/deflatedecoder-bufread.rs b/examples/deflatedecoder-bufread.rs
index 7d1cb6fd..6b8e7fea 100644
--- a/examples/deflatedecoder-bufread.rs
+++ b/examples/deflatedecoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::DeflateDecoder;
 use flate2::write::DeflateEncoder;
 use flate2::Compression;
diff --git a/examples/deflatedecoder-read.rs b/examples/deflatedecoder-read.rs
index cc5d435b..1bc83bc3 100644
--- a/examples/deflatedecoder-read.rs
+++ b/examples/deflatedecoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::DeflateDecoder;
 use flate2::write::DeflateEncoder;
 use flate2::Compression;
diff --git a/examples/deflatedecoder-write.rs b/examples/deflatedecoder-write.rs
index 276490ba..b9ba7a31 100644
--- a/examples/deflatedecoder-write.rs
+++ b/examples/deflatedecoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::DeflateDecoder;
 use flate2::write::DeflateEncoder;
 use flate2::Compression;
diff --git a/examples/deflateencoder-bufread.rs b/examples/deflateencoder-bufread.rs
index 6240f399..bff1848c 100644
--- a/examples/deflateencoder-bufread.rs
+++ b/examples/deflateencoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::DeflateEncoder;
 use flate2::Compression;
 use std::fs::File;
diff --git a/examples/deflateencoder-read.rs b/examples/deflateencoder-read.rs
index ffb628e4..366c60c9 100644
--- a/examples/deflateencoder-read.rs
+++ b/examples/deflateencoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::DeflateEncoder;
 use flate2::Compression;
 use std::io;
diff --git a/examples/deflateencoder-write.rs b/examples/deflateencoder-write.rs
index 243b9dfd..f998e1ae 100644
--- a/examples/deflateencoder-write.rs
+++ b/examples/deflateencoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::DeflateEncoder;
 use flate2::Compression;
 use std::io::prelude::*;
diff --git a/examples/gzbuilder.rs b/examples/gzbuilder.rs
index d6ec2f4c..c0725085 100644
--- a/examples/gzbuilder.rs
+++ b/examples/gzbuilder.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::Compression;
 use flate2::GzBuilder;
 use std::fs::File;
diff --git a/examples/gzdecoder-bufread.rs b/examples/gzdecoder-bufread.rs
index 85511973..06d0448d 100644
--- a/examples/gzdecoder-bufread.rs
+++ b/examples/gzdecoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::GzEncoder;
 use flate2::{bufread, Compression};
 use std::io;
diff --git a/examples/gzdecoder-read.rs b/examples/gzdecoder-read.rs
index 705d28c2..fbd05be7 100644
--- a/examples/gzdecoder-read.rs
+++ b/examples/gzdecoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::GzEncoder;
 use flate2::{read, Compression};
 use std::io;
diff --git a/examples/gzdecoder-write.rs b/examples/gzdecoder-write.rs
index 766bb5e7..6cee8f8d 100644
--- a/examples/gzdecoder-write.rs
+++ b/examples/gzdecoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::{GzDecoder, GzEncoder};
 use flate2::Compression;
 use std::io;
diff --git a/examples/gzencoder-bufread.rs b/examples/gzencoder-bufread.rs
index 015ae0a8..2214e2dc 100644
--- a/examples/gzencoder-bufread.rs
+++ b/examples/gzencoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::GzEncoder;
 use flate2::Compression;
 use std::fs::File;
diff --git a/examples/gzencoder-read.rs b/examples/gzencoder-read.rs
index 3f1262b9..ee138483 100644
--- a/examples/gzencoder-read.rs
+++ b/examples/gzencoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::GzEncoder;
 use flate2::Compression;
 use std::io;
diff --git a/examples/gzencoder-write.rs b/examples/gzencoder-write.rs
index 275b010c..cee01d14 100644
--- a/examples/gzencoder-write.rs
+++ b/examples/gzencoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::GzEncoder;
 use flate2::Compression;
 use std::io::prelude::*;
diff --git a/examples/gzmultidecoder-bufread.rs b/examples/gzmultidecoder-bufread.rs
index c6bb2c55..692b6f53 100644
--- a/examples/gzmultidecoder-bufread.rs
+++ b/examples/gzmultidecoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::MultiGzDecoder;
 use flate2::write::GzEncoder;
 use flate2::Compression;
diff --git a/examples/gzmultidecoder-read.rs b/examples/gzmultidecoder-read.rs
index 7c8a8e31..c59561dd 100644
--- a/examples/gzmultidecoder-read.rs
+++ b/examples/gzmultidecoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::MultiGzDecoder;
 use flate2::write::GzEncoder;
 use flate2::Compression;
diff --git a/examples/zlibdecoder-bufread.rs b/examples/zlibdecoder-bufread.rs
index 30f168a7..82620c54 100644
--- a/examples/zlibdecoder-bufread.rs
+++ b/examples/zlibdecoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::ZlibDecoder;
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
diff --git a/examples/zlibdecoder-read.rs b/examples/zlibdecoder-read.rs
index f7e5fb0a..3d4cda7d 100644
--- a/examples/zlibdecoder-read.rs
+++ b/examples/zlibdecoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::ZlibDecoder;
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
diff --git a/examples/zlibdecoder-write.rs b/examples/zlibdecoder-write.rs
index 358e9035..7f5afbea 100644
--- a/examples/zlibdecoder-write.rs
+++ b/examples/zlibdecoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::ZlibDecoder;
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
diff --git a/examples/zlibencoder-bufread.rs b/examples/zlibencoder-bufread.rs
index 0321d8d3..e5e17f52 100644
--- a/examples/zlibencoder-bufread.rs
+++ b/examples/zlibencoder-bufread.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::bufread::ZlibEncoder;
 use flate2::Compression;
 use std::fs::File;
diff --git a/examples/zlibencoder-read.rs b/examples/zlibencoder-read.rs
index 779eb1d3..f833a50b 100644
--- a/examples/zlibencoder-read.rs
+++ b/examples/zlibencoder-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::ZlibEncoder;
 use flate2::Compression;
 use std::fs::File;
diff --git a/examples/zlibencoder-write.rs b/examples/zlibencoder-write.rs
index 76bcf17b..3e3548f0 100644
--- a/examples/zlibencoder-write.rs
+++ b/examples/zlibencoder-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
 use std::io::prelude::*;
diff --git a/tests/early-flush.rs b/tests/early-flush.rs
index e717adaa..b43f4745 100644
--- a/tests/early-flush.rs
+++ b/tests/early-flush.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use std::io::{Read, Write};
 
 use flate2::read::GzDecoder;
diff --git a/tests/empty-read.rs b/tests/empty-read.rs
index 75512383..3724c23d 100644
--- a/tests/empty-read.rs
+++ b/tests/empty-read.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use std::io::{Read, Write};
 
 #[test]
diff --git a/tests/gunzip.rs b/tests/gunzip.rs
index c3820328..f4b0de5c 100644
--- a/tests/gunzip.rs
+++ b/tests/gunzip.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 use flate2::read::GzDecoder;
 use flate2::read::MultiGzDecoder;
 use std::fs::File;
diff --git a/tests/zero-write.rs b/tests/zero-write.rs
index f0db86cb..22be8eec 100644
--- a/tests/zero-write.rs
+++ b/tests/zero-write.rs
@@ -1,5 +1,3 @@
-extern crate flate2;
-
 #[test]
 fn zero_write_is_error() {
     let mut buf = [0u8];