diff --git a/reference/v8.json b/reference/v8.json
index 9df267f..c22785d 100644
--- a/reference/v8.json
+++ b/reference/v8.json
@@ -652,7 +652,7 @@
       "property-function": true,
       "values": {
         "map": {
-            "doc": "When `symbol-placement` is set to `point`, produces icons whose x-axes are aligned east-west."
+            "doc": "When `symbol-placement` is set to `point`, produces icons whose x-axes are aligned east-west. When set to `line`, produces icons whose x-axes are aligned with the line."
         },
         "viewport": {
             "doc": "Produces icons whose x-axes are aligned with the x-axis of the viewport, regardless of the value of `symbol-placement`."
@@ -899,7 +899,7 @@
       "property-function": true,
       "values": {
         "map": {
-            "doc": "When `symbol-placement` is set to `point`, produces glyphs whose x-axes are aligned east-west."
+            "doc": "When `symbol-placement` is set to `point`, produces glyphs whose x-axes are aligned east-west. When set to `line`, produces glyphs whose x-axes are aligned with the line."
         },
         "viewport": {
             "doc": "Produces glyphs whose x-axes are aligned with the x-axis of the viewport, regardless of the value of `symbol-placement`."