diff --git a/build_tools/wheels/cibw_before_all.sh b/build_tools/wheels/cibw_before_all.sh
index 871ece45f..789d65c5a 100644
--- a/build_tools/wheels/cibw_before_all.sh
+++ b/build_tools/wheels/cibw_before_all.sh
@@ -9,10 +9,10 @@ PROJECT_DIR="$2"
 export PYTHON="python${PYTHON_VERSION}"
 
 yum install -y wget ninja-build
-pip install -r $PROJECT_DIR/python/dev_requirements.txt
+$(which $PYTHON) -m pip install -r $PROJECT_DIR/python/dev_requirements.txt
 
 # Install Boost
-wget https://archives.boost.io/release/1.87.0/source/boost_1_87_0.tar.gz
+wget https://archives.boost.io/release/1.87.0/source/boost_1_87_0.tar.gz --quiet
 tar -xzf boost_1_87_0.tar.gz
 cd boost_1_87_0
 ./bootstrap.sh --prefix=/opt/boost
@@ -39,5 +39,5 @@ cmake $PROJECT_DIR \
     -DGTSAM_ALLOW_DEPRECATED_SINCE_V43=OFF \
     -DCMAKE_INSTALL_PREFIX=$PROJECT_DIR/gtsam_install
 
-cd $PROJECT_DIR/build
+cd $PROJECT_DIR/build/python
 make -j$(nproc) install
diff --git a/python/setup.py.in b/python/setup.py.in
index b9d7392c7..4be235ab0 100644
--- a/python/setup.py.in
+++ b/python/setup.py.in
@@ -1,6 +1,6 @@
 """Setup file to install the GTSAM package."""
 
-from setuptools import setup, find_namespace_packages
+from setuptools import setup, find_namespace_packages, Distribution
 
 packages = find_namespace_packages(
     where=".",
@@ -20,6 +20,10 @@ package_data = {
 # Cleaner to read in the contents rather than copy them over.
 readme_contents = open("${GTSAM_SOURCE_DIR}/README.md").read()
 
+class BinaryDistribution(Distribution):
+    def has_ext_modules(foo):
+        return True
+
 setup(
     name='gtsam',
     description='Georgia Tech Smoothing And Mapping library',
@@ -46,6 +50,7 @@ setup(
     packages=packages,
     include_package_data=True,
     package_data=package_data,
+    distclass=BinaryDistribution,
     test_suite="gtsam.tests",
     install_requires=open("${GTSAM_SOURCE_DIR}/python/requirements.txt").readlines(),
     zip_safe=False,