diff --git a/python/build-wheel-macos.sh b/python/build-wheel-macos.sh
index f25a54637..9f8a7a6dd 100755
--- a/python/build-wheel-macos.sh
+++ b/python/build-wheel-macos.sh
@@ -42,6 +42,12 @@ mkdir -p .whl
 source $HOME/.nvm/nvm.sh
 nvm use node
 
+# Build the dashboard so its static assets can be included in the wheel.
+pushd python/ray/dashboard/client
+  npm ci
+  npm run build
+popd
+
 for ((i=0; i<${#PY_VERSIONS[@]}; ++i)); do
   PY_VERSION=${PY_VERSIONS[i]}
   PY_INST=${PY_INSTS[i]}
@@ -51,7 +57,7 @@ for ((i=0; i<${#PY_VERSIONS[@]}; ++i)); do
   # The -f flag is passed twice to also run git clean in the arrow subdirectory.
   # The -d flag removes directories. The -x flag ignores the .gitignore file,
   # and the -e flag ensures that we don't remove the .whl directory.
-  git clean -f -f -x -d -e .whl -e $DOWNLOAD_DIR
+  git clean -f -f -x -d -e .whl -e $DOWNLOAD_DIR -e python/ray/dashboard/client
 
   # Install Python.
   INST_PATH=python_downloads/$PY_INST
@@ -66,12 +72,6 @@ for ((i=0; i<${#PY_VERSIONS[@]}; ++i)); do
     curl https://bootstrap.pypa.io/get-pip.py | $PYTHON_EXE
   popd
 
-  # Build the dashboard so its static assets can be included in the wheel.
-  pushd python/ray/dashboard/client
-    npm ci
-    npm run build
-  popd
-
   pushd python
     # Setuptools on CentOS is too old to install arrow 0.9.0, therefore we upgrade.
     $PIP_CMD install --upgrade setuptools
@@ -89,5 +89,3 @@ for ((i=0; i<${#PY_VERSIONS[@]}; ++i)); do
     mv dist/*.whl ../.whl/
   popd
 done
-
-git clean -f -f -x -d -e .whl -e $DOWNLOAD_DIR
diff --git a/python/build-wheel-manylinux1.sh b/python/build-wheel-manylinux1.sh
index 4cdf4c623..d7325e15e 100755
--- a/python/build-wheel-manylinux1.sh
+++ b/python/build-wheel-manylinux1.sh
@@ -41,6 +41,12 @@ source $HOME/.nvm/nvm.sh
 nvm install node
 nvm use node
 
+# Build the dashboard so its static assets can be included in the wheel.
+pushd python/ray/dashboard/client
+  npm ci
+  npm run build
+popd
+
 mkdir .whl
 for ((i=0; i<${#PYTHONS[@]}; ++i)); do
   PYTHON=${PYTHONS[i]}
@@ -48,14 +54,9 @@ for ((i=0; i<${#PYTHONS[@]}; ++i)); do
 
   # The -f flag is passed twice to also run git clean in the arrow subdirectory.
   # The -d flag removes directories. The -x flag ignores the .gitignore file,
-  # and the -e flag ensures that we don't remove the .whl directory.
-  git clean -f -f -x -d -e .whl
-
-  # Build the dashboard so its static assets can be included in the wheel.
-  pushd python/ray/dashboard/client
-    npm ci
-    npm run build
-  popd
+  # and the -e flag ensures that we don't remove the .whl directory and the
+  # dashboard directory.
+  git clean -f -f -x -d -e .whl -e python/ray/dashboard/client
 
   pushd python
     # Fix the numpy version because this will be the oldest numpy version we can
@@ -67,8 +68,6 @@ for ((i=0; i<${#PYTHONS[@]}; ++i)); do
   popd
 done
 
-git clean -f -f -x -d -e .whl
-
 # Rename the wheels so that they can be uploaded to PyPI. TODO(rkn): This is a
 # hack, we should use auditwheel instead.
 pushd .whl