diff --git a/src/server/protocol.ts b/src/server/protocol.ts
index 289478e745317..20854c7597b2e 100644
--- a/src/server/protocol.ts
+++ b/src/server/protocol.ts
@@ -2682,6 +2682,7 @@ namespace ts.server.protocol {
          */
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
+        readonly allowTextChangesInNewFiles?: boolean;
     }
 
     export interface CompilerOptions {
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index 04279014ecc6c..02368b1098b36 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -7575,6 +7575,7 @@ declare namespace ts.server.protocol {
          */
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
+        readonly allowTextChangesInNewFiles?: boolean;
     }
     interface CompilerOptions {
         allowJs?: boolean;