diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 7d59053..f8ade8f 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -111,7 +111,7 @@ jobs:
           CIBW_TEST_EXTRAS: "test"
 
           # run tests
-          CIBW_TEST_COMMAND: "pytest {project}/suitesparse_graphblas/tests"
+          CIBW_TEST_COMMAND: "pytest --pyargs suitesparse_graphblas"
 
           # GitHub Actions macOS Intel runner cannot run ARM tests.
           CIBW_TEST_SKIP: "*-macosx_arm64"
diff --git a/MANIFEST.in b/MANIFEST.in
index c2e230d..61cd04d 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,4 +6,3 @@ include suitesparse_graphblas/*.pxd
 include suitesparse_graphblas/*.pyx
 include suitesparse_graphblas/*.c
 include suitesparse_graphblas/*.h
-include suitesparse_graphblas/tests/*.py
diff --git a/pyproject.toml b/pyproject.toml
index beccc7a..1a5d5fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,7 @@ test = [
 [tool.setuptools]
 packages = [
     'suitesparse_graphblas',
-    # 'suitesparse_graphblas.tests',
+    'suitesparse_graphblas.tests',
     'suitesparse_graphblas.io',
 ]
 
diff --git a/suitesparse.sh b/suitesparse.sh
index 72d805f..26b29fb 100755
--- a/suitesparse.sh
+++ b/suitesparse.sh
@@ -52,15 +52,15 @@ cd GraphBLAS-${VERSION}/build
 # echo "#define GxB_NO_BOOL      1" >> ../Source/GB_control.h #
 # echo "#define GxB_NO_FP32      1" >> ../Source/GB_control.h #
 # echo "#define GxB_NO_FP64      1" >> ../Source/GB_control.h #
-echo "#define GxB_NO_FC32      1" >> ../Source/GB_control.h #
-echo "#define GxB_NO_FC64      1" >> ../Source/GB_control.h #
-# echo "#define GxB_NO_INT16     1" >> ../Source/GB_control.h
-# echo "#define GxB_NO_INT32     1" >> ../Source/GB_control.h
+echo "#define GxB_NO_FC32      1" >> ../Source/GB_control.h
+echo "#define GxB_NO_FC64      1" >> ../Source/GB_control.h
+# echo "#define GxB_NO_INT16     1" >> ../Source/GB_control.h #
+# echo "#define GxB_NO_INT32     1" >> ../Source/GB_control.h #
 # echo "#define GxB_NO_INT64     1" >> ../Source/GB_control.h #
-# echo "#define GxB_NO_INT8      1" >> ../Source/GB_control.h
+# echo "#define GxB_NO_INT8      1" >> ../Source/GB_control.h #
 echo "#define GxB_NO_UINT16    1" >> ../Source/GB_control.h
 echo "#define GxB_NO_UINT32    1" >> ../Source/GB_control.h
-# echo "#define GxB_NO_UINT64    1" >> ../Source/GB_control.h
+# echo "#define GxB_NO_UINT64    1" >> ../Source/GB_control.h #
 echo "#define GxB_NO_UINT8     1" >> ../Source/GB_control.h
 
 # Disable all Source/Generated2 kernels. For workflow development only.
diff --git a/suitesparse_graphblas/tests/__init__.py b/suitesparse_graphblas/tests/__init__.py
new file mode 100644
index 0000000..e69de29