diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2474bc12e4e..654e8051134 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -82,5 +82,9 @@ add_compile_definitions(
   $<$<COMPILE_LANGUAGE:Swift>:SWIFT_SYNTAX_BUILD_USING_CMAKE>
 )
 
+if(${SWIFTSYNTAX_EXCLUDE_FROM_ALL})
+  set_directory_properties(PROPERTIES EXCLUDE_FROM_ALL YES)
+endif()
+
 add_subdirectory(Sources)
 add_subdirectory(cmake/modules)
diff --git a/Sources/SwiftCompilerPlugin/CMakeLists.txt b/Sources/SwiftCompilerPlugin/CMakeLists.txt
index 20c7d9a7872..83fb846a748 100644
--- a/Sources/SwiftCompilerPlugin/CMakeLists.txt
+++ b/Sources/SwiftCompilerPlugin/CMakeLists.txt
@@ -7,7 +7,6 @@
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
 add_swift_syntax_library(SwiftCompilerPlugin
-  EXCLUDE_FROM_ALL
   CompilerPlugin.swift
 )