diff --git a/tools/swift-plugin-server/Sources/swift-plugin-server/swift-plugin-server.swift b/tools/swift-plugin-server/Sources/swift-plugin-server/swift-plugin-server.swift
index 1b97b4fd0af17..3fb2d9fe3d6a7 100644
--- a/tools/swift-plugin-server/Sources/swift-plugin-server/swift-plugin-server.swift
+++ b/tools/swift-plugin-server/Sources/swift-plugin-server/swift-plugin-server.swift
@@ -21,6 +21,6 @@ final class SwiftPluginServer {
       connection: connection,
       provider: LibraryPluginProvider.shared
     )
-    listener.main()
+    try listener.main()
   }
 }