diff --git a/Package.swift b/Package.swift
index c36f3f23121..7093a0144ca 100644
--- a/Package.swift
+++ b/Package.swift
@@ -172,7 +172,7 @@ let package = Package(
 
     .target(
       name: "SwiftSyntax",
-      dependencies: ["SwiftSyntax509", "SwiftSyntax510"],
+      dependencies: ["SwiftSyntax509", "SwiftSyntax510", "SwiftSyntax511"],
       exclude: ["CMakeLists.txt"],
       swiftSettings: swiftSyntaxSwiftSettings
     ),
@@ -195,6 +195,11 @@ let package = Package(
       dependencies: []
     ),
 
+    .target(
+      name: "SwiftSyntax511",
+      dependencies: []
+    ),
+
     // MARK: SwiftSyntaxBuilder
 
     .target(
diff --git a/Sources/SwiftSyntax511/Empty.swift b/Sources/SwiftSyntax511/Empty.swift
new file mode 100644
index 00000000000..c8a050ebe14
--- /dev/null
+++ b/Sources/SwiftSyntax511/Empty.swift
@@ -0,0 +1,3 @@
+// The SwiftSyntax511 module is intentionally empty.
+// It serves as an indicator which version of swift-syntax a package is building against.
+// See the 'Macro Versioning.md' document for more details.