diff --git a/src/uu/seq/src/seq.rs b/src/uu/seq/src/seq.rs
index 07c7f762f..788583a72 100644
--- a/src/uu/seq/src/seq.rs
+++ b/src/uu/seq/src/seq.rs
@@ -144,7 +144,7 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
 pub fn uu_app<'a>() -> App<'a> {
     App::new(uucore::util_name())
         .setting(AppSettings::TrailingVarArg)
-        .setting(AppSettings::AllowHyphenValues)
+        .setting(AppSettings::AllowNegativeNumbers)
         .setting(AppSettings::InferLongArgs)
         .version(crate_version!())
         .about(ABOUT)
diff --git a/tests/by-util/test_seq.rs b/tests/by-util/test_seq.rs
index 5adbc292e..a18cbc2ad 100644
--- a/tests/by-util/test_seq.rs
+++ b/tests/by-util/test_seq.rs
@@ -20,14 +20,14 @@ fn test_hex_rejects_sign_after_identifier() {
         .args(&["-0x-123ABC"])
         .fails()
         .no_stdout()
-        .stderr_contains("invalid floating point argument: '-0x-123ABC'")
-        .stderr_contains("for more information.");
+        .stderr_contains("which wasn't expected, or isn't valid in this context")
+        .stderr_contains("For more information try --help");
     new_ucmd!()
         .args(&["-0x+123ABC"])
         .fails()
         .no_stdout()
-        .stderr_contains("invalid floating point argument: '-0x+123ABC'")
-        .stderr_contains("for more information.");
+        .stderr_contains("which wasn't expected, or isn't valid in this context")
+        .stderr_contains("For more information try --help");
 }
 
 #[test]
@@ -81,6 +81,33 @@ fn test_rejects_non_floats() {
         .usage_error("invalid floating point argument: 'foo'");
 }
 
+#[test]
+fn test_accepts_option_argument_directly() {
+    new_ucmd!()
+        .arg("-s,")
+        .arg("2")
+        .succeeds()
+        .stdout_is("1,2\n");
+}
+
+#[test]
+fn test_option_with_detected_negative_argument() {
+    new_ucmd!()
+        .arg("-s,")
+        .args(&["-1", "2"])
+        .succeeds()
+        .stdout_is("-1,0,1,2\n");
+}
+
+#[test]
+fn test_negative_number_as_separator() {
+    new_ucmd!()
+        .arg("-s")
+        .args(&["-1", "2"])
+        .succeeds()
+        .stdout_is("1-12\n");
+}
+
 #[test]
 fn test_invalid_float() {
     new_ucmd!()