diff --git a/knowledge/glossary/terms/wonky_axis/term.textproto b/knowledge/glossary/terms/wonky_axis/term.textproto
index ed1d8c090..cd17fd70d 100644
--- a/knowledge/glossary/terms/wonky_axis/term.textproto
+++ b/knowledge/glossary/terms/wonky_axis/term.textproto
@@ -1,5 +1,5 @@
 name: "Wonky axis (WONK)"
-excerpt: "An axis found in some variable fonts that controls the substitution of “wonky” forms.
+excerpt: "An axis found in some variable fonts that controls the substitution of “wonky” forms."
 related_lessons: "introducing_variable_fonts"
 related_lessons: "designing_with_variable_fonts_in_desktop_apps"
 related_lessons: "styling_type_on_the_web_with_variable_fonts"