diff --git a/src/server/protocol.ts b/src/server/protocol.ts
index 93d5c69d361..f44efa0db21 100644
--- a/src/server/protocol.ts
+++ b/src/server/protocol.ts
@@ -16,7 +16,7 @@ namespace ts.server.protocol {
         CompletionsFull = "completions-full",
         CompletionDetails = "completionEntryDetails",
         /* @internal */
-        CompletionDetailsFull = "completionEntryDetailsFull",
+        CompletionDetailsFull = "completionEntryDetails-full",
         CompileOnSaveAffectedFileList = "compileOnSaveAffectedFileList",
         CompileOnSaveEmitFile = "compileOnSaveEmitFile",
         Configure = "configure",