diff --git a/src/parser/lesser_block.rs b/src/parser/lesser_block.rs
index a039061e..96157274 100644
--- a/src/parser/lesser_block.rs
+++ b/src/parser/lesser_block.rs
@@ -265,13 +265,14 @@ fn _lesser_block_end<'r, 's, 'x>(
     Ok((remaining, source))
 }
 
-fn lesser_block_begin(
-    current_name: &str,
+/// Parser for the beginning of a lesser block
+///
+/// current_name MUST be lowercase. We do not do the conversion ourselves because it is not allowed in a const fn.
+const fn lesser_block_begin(
+    current_name: &'static str,
 ) -> impl for<'r, 's> Fn(Context<'r, 's>, OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
-    let current_name_lower = current_name.to_lowercase();
-    move |context: Context, input: OrgSource<'_>| {
-        _lesser_block_begin(context, input, current_name_lower.as_str())
-    }
+    // TODO: Since this is a const fn, is there ANY way to "generate" functions at compile time?
+    move |context: Context, input: OrgSource<'_>| _lesser_block_begin(context, input, current_name)
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]