diff --git a/tests/fixtures/uniq/sorted-zero-terminated.expected b/tests/fixtures/uniq/sorted-zero-terminated.expected
new file mode 100644
index 000000000..94081d364
Binary files /dev/null and b/tests/fixtures/uniq/sorted-zero-terminated.expected differ
diff --git a/tests/fixtures/uniq/sorted-zero-terminated.txt b/tests/fixtures/uniq/sorted-zero-terminated.txt
new file mode 100644
index 000000000..588f7b076
Binary files /dev/null and b/tests/fixtures/uniq/sorted-zero-terminated.txt differ
diff --git a/tests/test_uniq.rs b/tests/test_uniq.rs
index 5a13cfe4d..f7cf42d45 100644
--- a/tests/test_uniq.rs
+++ b/tests/test_uniq.rs
@@ -8,6 +8,7 @@ fn new_ucmd() -> UCommand {
 static INPUT: &'static str = "sorted.txt";
 static SKIP_CHARS: &'static str = "skip-chars.txt";
 static SKIP_FIELDS: &'static str = "skip-fields.txt";
+static SORTED_ZERO_TERMINATED: &'static str = "sorted-zero-terminated.txt";
 
 #[test]
 fn test_stdin_default() {
@@ -92,3 +93,10 @@ fn test_stdin_repeated_only() {
         .args(&["-d"]).pipe_in_fixture(INPUT)
         .run().stdout_is_fixture("sorted-repeated-only.expected");
 }
+
+#[test]
+fn test_stdin_zero_terminated() {
+    new_ucmd()
+        .args(&["-z"]).pipe_in_fixture(SORTED_ZERO_TERMINATED)
+        .run().stdout_is_fixture("sorted-zero-terminated.expected");
+}
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