diff --git a/Lib/axisregistry/data/x_alignment.textproto b/Lib/axisregistry/data/x_alignment.textproto
new file mode 100644
index 00000000..f7ae5cde
--- /dev/null
+++ b/Lib/axisregistry/data/x_alignment.textproto
@@ -0,0 +1,16 @@
+# XALN based on a private project
+tag: "XALN"
+display_name: "Horizontal Alignment"
+min_value: -100
+default_value: 0
+max_value: 100
+precision: 0
+fallback {
+  name: "Default"
+  value: 0
+}
+fallback_only: false
+description:
+  "Align glyphs horizontally from their default position"
+  " to the left (-100%) with zero left sidebearing, or"
+  " to the right (100%) with zero right sidebearing."