diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index aa1945e74b9..9aef5232027 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -3171,6 +3171,7 @@ declare namespace ts {
         readonly disableSuggestions?: boolean;
         readonly quotePreference?: "auto" | "double" | "single";
         readonly includeCompletionsForModuleExports?: boolean;
+        readonly includeAutomaticOptionalChainCompletions?: boolean;
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
         /** Determines whether we import `foo/index.ts` as "foo", "foo/index", or "foo/index.js" */
@@ -8295,6 +8296,12 @@ declare namespace ts.server.protocol {
          * For those entries, The `insertText` and `replacementSpan` properties will be set to change from `.x` property access to `["x"]`.
          */
         readonly includeCompletionsWithInsertText?: boolean;
+        /**
+         * Unless this option is disabled, or `includeCompletionsWithInsertText` is not enabled,
+         * member completion lists triggered with `.` will include entries on potentially-null and potentially-undefined
+         * values, with insertion text to replace preceding `.` tokens with `?.`.
+         */
+        readonly includeAutomaticOptionalChainCompletions?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
         readonly allowTextChangesInNewFiles?: boolean;
         readonly lazyConfiguredProjectsFromExternalProject?: boolean;
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
index 7c756d8a0a3..7361ccb6768 100644
--- a/tests/baselines/reference/api/typescript.d.ts
+++ b/tests/baselines/reference/api/typescript.d.ts
@@ -3171,6 +3171,7 @@ declare namespace ts {
         readonly disableSuggestions?: boolean;
         readonly quotePreference?: "auto" | "double" | "single";
         readonly includeCompletionsForModuleExports?: boolean;
+        readonly includeAutomaticOptionalChainCompletions?: boolean;
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
         /** Determines whether we import `foo/index.ts` as "foo", "foo/index", or "foo/index.js" */