diff --git a/clang/CMakeLists.txt b/clang/CMakeLists.txt
index 6d8f23c0d3f9f..75dafbf75300f 100644
--- a/clang/CMakeLists.txt
+++ b/clang/CMakeLists.txt
@@ -237,14 +237,7 @@ set(ENABLE_X86_RELAX_RELOCATIONS OFF CACHE BOOL
 set(ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER FALSE CACHE BOOL
   "Enable the experimental new pass manager by default.")
 
-# Clang tool executes cc1 commands in the same process after b4a99a0
-# It causes increasing memory consumption for compilations where several
-# source files are passed (for C++ application) or several build steps (e.g.
-# for SYCL application we have host, device and integration header step
-# per source file). Memory is not freed for all cc1 commands until end
-# This change forces clang driver use old behavior untill memory issue
-# is fixed.
-set(CLANG_SPAWN_CC1 ON CACHE BOOL
+set(CLANG_SPAWN_CC1 OFF CACHE BOOL
     "Whether clang should use a new process for the CC1 invocation")
 
 # TODO: verify the values against LangStandards.def?