diff --git a/library/std/src/io/error.rs b/library/std/src/io/error.rs
index 6ca8e0b506c0..6afce26d5ea7 100644
--- a/library/std/src/io/error.rs
+++ b/library/std/src/io/error.rs
@@ -208,28 +208,29 @@ pub enum ErrorKind {
 
 impl ErrorKind {
     pub(crate) fn as_str(&self) -> &'static str {
+        use ErrorKind::*;
         match *self {
-            ErrorKind::NotFound => "entity not found",
-            ErrorKind::PermissionDenied => "permission denied",
-            ErrorKind::ConnectionRefused => "connection refused",
-            ErrorKind::ConnectionReset => "connection reset",
-            ErrorKind::ConnectionAborted => "connection aborted",
-            ErrorKind::NotConnected => "not connected",
-            ErrorKind::AddrInUse => "address in use",
-            ErrorKind::AddrNotAvailable => "address not available",
-            ErrorKind::BrokenPipe => "broken pipe",
-            ErrorKind::AlreadyExists => "entity already exists",
-            ErrorKind::WouldBlock => "operation would block",
-            ErrorKind::InvalidInput => "invalid input parameter",
-            ErrorKind::InvalidData => "invalid data",
-            ErrorKind::TimedOut => "timed out",
-            ErrorKind::WriteZero => "write zero",
-            ErrorKind::Interrupted => "operation interrupted",
-            ErrorKind::UnexpectedEof => "unexpected end of file",
-            ErrorKind::Unsupported => "unsupported",
-            ErrorKind::OutOfMemory => "out of memory",
-            ErrorKind::Other => "other error",
-            ErrorKind::Uncategorized => "uncategorized error",
+            AddrInUse => "address in use",
+            AddrNotAvailable => "address not available",
+            AlreadyExists => "entity already exists",
+            BrokenPipe => "broken pipe",
+            ConnectionAborted => "connection aborted",
+            ConnectionRefused => "connection refused",
+            ConnectionReset => "connection reset",
+            Interrupted => "operation interrupted",
+            InvalidData => "invalid data",
+            InvalidInput => "invalid input parameter",
+            NotConnected => "not connected",
+            NotFound => "entity not found",
+            Other => "other error",
+            OutOfMemory => "out of memory",
+            PermissionDenied => "permission denied",
+            TimedOut => "timed out",
+            Uncategorized => "uncategorized error",
+            UnexpectedEof => "unexpected end of file",
+            Unsupported => "unsupported",
+            WouldBlock => "operation would block",
+            WriteZero => "write zero",
         }
     }
 }