diff --git a/tests/integration.rs b/tests/integration.rs
index b67b3ee..f88e568 100644
--- a/tests/integration.rs
+++ b/tests/integration.rs
@@ -19,6 +19,8 @@ use crate::utils::{assert_same_directory, write_random_content};
 #[derive(Arbitrary, Debug, Display)]
 #[display(style = "lowercase")]
 enum DirectoryExtension {
+    #[display("7z")]
+    SevenZ,
     Tar,
     Tbz,
     Tbz2,
diff --git a/tests/mime.rs b/tests/mime.rs
index 1f340d0..bf52179 100644
--- a/tests/mime.rs
+++ b/tests/mime.rs
@@ -17,11 +17,12 @@ fn sanity_check_through_mime() {
     write_random_content(test_file, &mut SmallRng::from_entropy());
 
     let formats = [
-        "tar", "zip", "tar.gz", "tgz", "tbz", "tbz2", "txz", "tlzma", "tzst", "tar.bz", "tar.bz2", "tar.lzma",
+        "7z", "tar", "zip", "tar.gz", "tgz", "tbz", "tbz2", "txz", "tlzma", "tzst", "tar.bz", "tar.bz2", "tar.lzma",
         "tar.xz", "tar.zst",
     ];
 
     let expected_mimes = [
+        "application/x-7z-compressed",
         "application/x-tar",
         "application/zip",
         "application/gzip",