diff --git a/src/server/session.ts b/src/server/session.ts
index c85158744bc..195845c98fe 100644
--- a/src/server/session.ts
+++ b/src/server/session.ts
@@ -111,8 +111,8 @@ namespace ts.server {
         export const Formatonkey = "formatonkey";
         export const Geterr = "geterr";
         export const GeterrForProject = "geterrForProject";
-        export const SemanticDiagnosticsSync = "semanticDiagnosticsFull";
-        export const SyntacticDiagnosticsSync = "syntacticDiagnosticsFull";
+        export const SemanticDiagnosticsSync = "semanticDiagnosticsSync";
+        export const SyntacticDiagnosticsSync = "syntacticDiagnosticsSync";
         export const NavBar = "navbar";
         export const Navto = "navto";
         export const Occurrences = "occurrences";