diff --git a/org_mode_samples/lesser_element/diary_sexp/with_comment_at_end_of_line.org b/org_mode_samples/lesser_element/diary_sexp/with_comment_at_end_of_line.org
new file mode 100644
index 0000000..86af989
--- /dev/null
+++ b/org_mode_samples/lesser_element/diary_sexp/with_comment_at_end_of_line.org
@@ -0,0 +1 @@
+%%(foo bar)    ;    baz
diff --git a/src/parser/diary_sexp.rs b/src/parser/diary_sexp.rs
index 6d403dc..691f990 100644
--- a/src/parser/diary_sexp.rs
+++ b/src/parser/diary_sexp.rs
@@ -1,9 +1,12 @@
 use nom::branch::alt;
 use nom::bytes::complete::tag;
+use nom::character::complete::anychar;
 use nom::character::complete::line_ending;
 use nom::character::complete::space0;
 use nom::combinator::eof;
+use nom::combinator::opt;
 use nom::combinator::recognize;
+use nom::multi::many_till;
 use nom::sequence::tuple;
 
 use super::org_source::OrgSource;
@@ -24,6 +27,11 @@ pub fn diary_sexp<'r, 's>(
     let (remaining, _clock) = tag("%%")(remaining)?;
     let (remaining, _gap_whitespace) = space0(remaining)?;
     let (remaining, _sexp) = recognize(sexp)(remaining)?;
+    let (remaining, _trailing_comment) = opt(tuple((
+        space0,
+        tag(";"),
+        many_till(anychar, alt((line_ending, eof))),
+    )))(remaining)?;
     let (remaining, _trailing_whitespace) =
         recognize(tuple((space0, alt((line_ending, eof)))))(remaining)?;