diff --git a/src/compare/diff.rs b/src/compare/diff.rs
index fe8cd8a..859189a 100644
--- a/src/compare/diff.rs
+++ b/src/compare/diff.rs
@@ -1484,24 +1484,34 @@ fn compare_footnote_definition<'b, 's>(
 }
 
 fn compare_comment<'b, 's>(
-    _source: &'s str,
+    source: &'s str,
     emacs: &'b Token<'s>,
     rust: &'b Comment<'s>,
 ) -> Result<DiffEntry<'b, 's>, Box<dyn std::error::Error>> {
-    let child_status = Vec::new();
     let mut this_status = DiffStatus::Good;
+    let mut child_status = Vec::new();
     let mut message = None;
 
-    // Compare value
-    let value =
-        get_property_quoted_string(emacs, ":value")?.ok_or("Comments should have a value.")?;
-    let rust_value = rust.get_value();
-    if value != rust_value {
-        this_status = DiffStatus::Bad;
-        message = Some(format!(
-            "Value mismatch (emacs != rust) {:?} != {:?}",
-            value, rust_value
-        ));
+    assert_no_children(emacs, &mut this_status, &mut message)?;
+
+    for diff in compare_properties!(
+        source,
+        emacs,
+        rust,
+        (
+            EmacsField::Required(":value"),
+            |r| Some(r.get_value()),
+            compare_property_quoted_string
+        )
+    ) {
+        match diff {
+            ComparePropertiesResult::NoChange => {}
+            ComparePropertiesResult::SelfChange(new_status, new_message) => {
+                this_status = new_status;
+                message = new_message
+            }
+            ComparePropertiesResult::DiffEntry(diff_entry) => child_status.push(diff_entry),
+        }
     }
 
     Ok(DiffResult {