diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index f651d90865c..e6637813cd5 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -58,8 +58,11 @@ if( LLVM_ENABLE_PIC )
 endif()
 
 add_llvm_external_project(clang)
-add_llvm_external_project(lld)
-add_llvm_external_project(lldb)
-add_llvm_external_project(polly)
+
+if( NOT LLVM_INCLUDE_TOOLS STREQUAL "bootstrap-only" )
+  add_llvm_external_project(lld)
+  add_llvm_external_project(lldb)
+  add_llvm_external_project(polly)
+endif()
 
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)