diff --git a/mime-0.3.5-fix-unused-asciiext.diff b/mime-0.3.5-fix-unused-asciiext.diff
new file mode 100644
index 0000000..3663fa8
--- /dev/null
+++ b/mime-0.3.5-fix-unused-asciiext.diff
@@ -0,0 +1,19 @@
+diff -upr mime-0.3.5.asciiext/src/lib.rs mime-0.3.5/src/lib.rs
+--- mime-0.3.5.asciiext/src/lib.rs	2017-10-11 13:14:46.000000000 -0700
++++ mime-0.3.5/src/lib.rs	2018-01-25 20:50:43.497982337 -0800
+@@ -539,6 +539,7 @@ macro_rules! names {
+ 
+         #[test]
+         fn test_names_macro_consts() {
++            #[allow(unused_imports)]
+             use std::ascii::AsciiExt;
+             $(
+             assert_eq!($id.source.to_ascii_lowercase(), $id.source);
+diff -upr mime-0.3.5.asciiext/src/parse.rs mime-0.3.5/src/parse.rs
+--- mime-0.3.5.asciiext/src/parse.rs	2017-10-11 12:56:54.000000000 -0700
++++ mime-0.3.5/src/parse.rs	2018-01-25 20:51:01.185591929 -0800
+@@ -1,3 +1,4 @@
++#[allow(unused_imports)]
+ use std::ascii::AsciiExt;
+ use std::error::Error;
+ use std::fmt;
diff --git a/rust-mime.spec b/rust-mime.spec
index 37efc00..83bb4e6 100644
--- a/rust-mime.spec
+++ b/rust-mime.spec
@@ -6,12 +6,13 @@
 
 Name:           rust-%{crate}
 Version:        0.3.5
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Strongly Typed Mimes
 
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/mime
 Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
+Patch0:         mime-0.3.5-fix-unused-asciiext.diff
 
 ExclusiveArch:  %{rust_arches}
 
@@ -53,6 +54,9 @@ which use %{crate} from crates.io.
 %{cargo_registry}/%{crate}-%{version}/
 
 %changelog
+* Thu Jan 25 2018 Josh Stone <jistone@redhat.com> - 0.3.5-3
+- Fix unused_imports warning for AsciiExt (rust 1.23)
+
 * Mon Jan 08 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.3.5-2
 - Rebuild for rust-packaging v5