diff --git a/Sources/SourceKitLSP/SourceKitLSPServer.swift b/Sources/SourceKitLSP/SourceKitLSPServer.swift
index 05ae24aaf..d7db1ee1f 100644
--- a/Sources/SourceKitLSP/SourceKitLSPServer.swift
+++ b/Sources/SourceKitLSP/SourceKitLSPServer.swift
@@ -1158,6 +1158,8 @@ extension SourceKitLSPServer {
       await workspace.buildSystemManager.setMainFilesProvider(nil)
       workspace.closeIndex()
     }
+    // Make sure we emit all pending log messages. When we're not using `NonDarwinLogger` this is a no-op.
+    await NonDarwinLogger.flush()
   }
 
   func shutdown(_ request: ShutdownRequest) async throws -> ShutdownRequest.Response {