diff --git a/hpvm/test/lit.cfg.py b/hpvm/test/lit.cfg.py
index 86acab4f03685239d716c7e8685beaabc1f2a36b..1f78a88103ecb76cd7b130ff302aead7f7ee8375 100644
--- a/hpvm/test/lit.cfg.py
+++ b/hpvm/test/lit.cfg.py
@@ -59,8 +59,6 @@ llvm_config.with_environment(
 # Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
 llvm_config.with_environment('OCAMLRUNPARAM', 'b')
 
-llvm_config.with_environment('LLVM_SRC_ROOT', config.llvm_src_root)
-
 # Provide the path to asan runtime lib 'libclang_rt.asan_osx_dynamic.dylib' if
 # available. This is darwin specific since it's currently only needed on darwin.