diff --git a/src/parser/babel_call.rs b/src/parser/babel_call.rs
index c4bf312..2919422 100644
--- a/src/parser/babel_call.rs
+++ b/src/parser/babel_call.rs
@@ -113,17 +113,14 @@ fn babel_call_call<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 fn inside_header<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
-    let (remaining, _) = tag("[")(input)?;
-
-    let contents_start = remaining;
-    let (remaining, contents) = opt(recognize(many_till(
-        anychar,
-        alt((
-            peek(recognize(one_of("]"))),
-            recognize(tuple((space0, org_line_ending))),
-        )),
-    )))(remaining)?;
-    let (remaining, _) = tag("]")(remaining)?;
+    let (remaining, contents) = balanced_bracket(
+        |i| tag("[")(i),
+        |i| peek(tag("]"))(i),
+        |i| recognize(tuple((space0, org_line_ending)))(i),
+        |i| tag("]")(i),
+        |s| s.get_bracket_depth(),
+    )(input)?;
+    let (contents_start, _) = tag("[")(input)?;
     Ok((remaining, contents.unwrap_or(contents_start.take(0))))
 }
 
@@ -136,30 +133,6 @@ fn arguments<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, Option<OrgSource<'s
         |i| tag(")")(i),
         |s| s.get_parenthesis_depth(),
     )(input)
-
-    // impl_balanced_bracket(
-    //     input,
-    //     |i| tag("(")(i),
-    //     |i| peek(tag(")"))(i),
-    //     |i| recognize(tuple((space0, org_line_ending)))(i),
-    //     |i| tag(")")(i),
-    //     |s| s.get_parenthesis_depth(),
-    // )
-
-    // let (remaining, _) = tag("(")(input)?;
-
-    // let (remaining, contents) = opt(verify(
-    //     recognize(many_till(
-    //         anychar,
-    //         alt((
-    //             peek(recognize(one_of(")"))),
-    //             recognize(tuple((space0, org_line_ending))),
-    //         )),
-    //     )),
-    //     |s| s.len() > 0,
-    // ))(remaining)?;
-    // let (remaining, _) = tag(")")(remaining)?;
-    // Ok((remaining, contents))
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]