diff --git a/src/documents/document/lists.rs b/src/documents/document/lists.rs
index fd10476..1dc1e09 100644
--- a/src/documents/document/lists.rs
+++ b/src/documents/document/lists.rs
@@ -91,7 +91,7 @@ fn ordered(rest: &str) -> Option<(String, usize)> {
     Some((format!("{}{close}", number + 1), digits + 1))
 }
 
-/// Leading bytes that make one step, tabs to stops of four.
+/// Leading bytes making one step; tabs stop every four.
 fn outdent(line: &str) -> usize {
     let mut columns = 0;
     for (bytes, ch) in line.char_indices() {
diff --git a/src/typography/math/tests.rs b/src/typography/math/tests.rs
index 74612ba..92c2a7d 100644
--- a/src/typography/math/tests.rs
+++ b/src/typography/math/tests.rs
@@ -198,7 +198,7 @@ fn an_exported_formula_outlines_its_text_or_says_why() {
 
 #[test]
 fn an_exported_formula_frames_its_outlined_text() {
-    // Wide or tall faces from the system, where fonts have them.
+    // Wide or tall system faces, where installed.
     for source in [r"\text{한글}", r"\text{𓀀} + x"] {
         let Ok(svg) = formula_svg(source, false) else {
             continue;