diff --git a/llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn b/llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn
index ca24b4b4037838..c03399193babac 100644
--- a/llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn
+++ b/llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn
@@ -40,7 +40,7 @@ write_cmake_config("lit_common_configured") {
     "COMPILER_RT_RESOLVED_TEST_COMPILER=" +
         rebase_path("$root_build_dir/bin/clang"),
     "COMPILER_RT_TEST_COMPILER_ID=Clang",
-    "Python3_EXECUTABLE=$python_path",
+    "PYTHON_EXECUTABLE=$python_path",
     "COMPILER_RT_DEBUG_PYBOOL=False",
     "COMPILER_RT_INTERCEPT_LIBDISPATCH_PYBOOL=False",
     "COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR=" +