diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7701bd6..3320ce9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -121,7 +121,7 @@ else()
     set(DFTRACER_FUNCTION_FLAGS )
 endif()
 
-option (DFTRACER_ENABLE_MPI "Enable MPI" On)
+option (DFTRACER_ENABLE_MPI "Enable MPI" OFF)
 if (DFTRACER_ENABLE_MPI) 
     set(DFTRACER_MPI_ENABLE 1)
 endif()
diff --git a/setup.py b/setup.py
index 2ae9e37..d7a8145 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@ def build_extension(self, ext: CMakeExtension) -> None:
         cmake_args += [f"-DCMAKE_BUILD_TYPE={build_type}"]
         enable_ftracing = os.environ.get("DFTRACER_ENABLE_FTRACING", "OFF")
         cmake_args += [f"-DDFTRACER_ENABLE_FTRACING={enable_ftracing}"]
-        enable_mpi = os.environ.get("DFTRACER_ENABLE_MPI", "ON")
+        enable_mpi = os.environ.get("DFTRACER_ENABLE_MPI", "OFF")
         cmake_args += [f"-DDFTRACER_ENABLE_MPI={enable_mpi}"]
         disable_hwloc = os.environ.get("DFTRACER_DISABLE_HWLOC", "ON")
         cmake_args += [f"-DDFTRACER_DISABLE_HWLOC={disable_hwloc}"]