diff --git a/llvm/utils/gn/secondary/clang/include/clang/Config/BUILD.gn b/llvm/utils/gn/secondary/clang/include/clang/Config/BUILD.gn
index 7af6ea8df2dc..e6d226ff1c71 100644
--- a/llvm/utils/gn/secondary/clang/include/clang/Config/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/include/clang/Config/BUILD.gn
@@ -20,7 +20,6 @@ write_cmake_config("Config") {
     "CLANG_DEFAULT_UNWINDLIB=",
     "CLANG_INSTALL_LIBDIR_BASENAME=lib",
     "CLANG_OPENMP_NVPTX_DEFAULT_ARCH=sm_35",
-    "CLANG_LIBDIR_SUFFIX=",
     "CLANG_RESOURCE_DIR=",
     "C_INCLUDE_DIRS=",
     "CLANG_CONFIG_FILE_SYSTEM_DIR=",
diff --git a/llvm/utils/gn/secondary/lldb/include/lldb/Host/BUILD.gn b/llvm/utils/gn/secondary/lldb/include/lldb/Host/BUILD.gn
index 6e512bb71ea8..b4f0f2911443 100644
--- a/llvm/utils/gn/secondary/lldb/include/lldb/Host/BUILD.gn
+++ b/llvm/utils/gn/secondary/lldb/include/lldb/Host/BUILD.gn
@@ -26,8 +26,6 @@ write_cmake_config("Config") {
 
     "LLDB_PYTHON_HOME=",
 
-    "LLVM_LIBDIR_SUFFIX=",
-
     "HAVE_LIBCOMPRESSION=",
   ]