diff --git a/src/parser/lesser_block.rs b/src/parser/lesser_block.rs
index e3dcca4..761e74c 100644
--- a/src/parser/lesser_block.rs
+++ b/src/parser/lesser_block.rs
@@ -258,6 +258,7 @@ pub(crate) fn src_block<'b, 'g, 'r, 's>(
     let (remaining, parameters) = opt(map(tuple((space1, src_parameters)), |(_, parameters)| {
         parameters
     }))(remaining)?;
+    let parameters = parameters.flatten();
     let (remaining, _nl) = recognize(tuple((space0, line_ending)))(remaining)?;
     let lesser_block_end_specialized = lesser_block_end("src");
     let contexts = [
@@ -389,8 +390,15 @@ enum SwitchState {
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
-fn src_parameters<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
-    recognize(many_till(anychar, peek(tuple((space0, line_ending)))))(input)
+fn src_parameters<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, Option<OrgSource<'s>>> {
+    let (remaining, parameters) =
+        recognize(many_till(anychar, peek(tuple((space0, line_ending)))))(input)?;
+
+    if parameters.len() == 0 {
+        Ok((remaining, None))
+    } else {
+        Ok((remaining, Some(parameters)))
+    }
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]