diff --git a/install_requirements.sh b/install_requirements.sh
index 966ccd8a9be..d541a30b221 100755
--- a/install_requirements.sh
+++ b/install_requirements.sh
@@ -27,7 +27,6 @@ fi
 
 # Parse options.
 EXECUTORCH_BUILD_PYBIND=OFF
-CMAKE_ARGS=""
 
 for arg in "$@"; do
   case $arg in
@@ -110,4 +109,5 @@ $PIP_EXECUTABLE install --extra-index-url "${TORCH_NIGHTLY_URL}" \
 
 EXECUTORCH_BUILD_PYBIND="${EXECUTORCH_BUILD_PYBIND}" \
     CMAKE_ARGS="${CMAKE_ARGS}" \
+    CMAKE_BUILD_ARGS="${CMAKE_BUILD_ARGS}" \
     $PIP_EXECUTABLE install . --no-build-isolation -v
diff --git a/setup.py b/setup.py
index 6591123d5e6..413a028e1e2 100644
--- a/setup.py
+++ b/setup.py
@@ -398,6 +398,14 @@ def run(self):
         if "CMAKE_ARGS" in os.environ:
             cmake_args += [item for item in os.environ["CMAKE_ARGS"].split(" ") if item]
 
+        # Allow adding extra build args through the environment. Used by some
+        # tests and demos to expand the set of targets included in the pip
+        # package.
+        if "CMAKE_BUILD_ARGS" in os.environ:
+            build_args += [
+                item for item in os.environ["CMAKE_BUILD_ARGS"].split(" ") if item
+            ]
+
         # Put the cmake cache under the temp directory, like
         # "pip-out/temp.<plat>/cmake-out".
         cmake_cache_dir = os.path.join(repo_root, self.build_temp, "cmake-out")