diff --git a/tests/iot.test.cpp b/tests/iot.test.cpp
index a40132e..3441371 100644
--- a/tests/iot.test.cpp
+++ b/tests/iot.test.cpp
@@ -17,8 +17,7 @@
 #include <boost/ut.hpp>
 
 namespace hal::iot {
-void iot_test()
-{
+boost::ut::suite iot_test = [] {
   using namespace boost::ut;
   using namespace std::literals;
 
diff --git a/tests/main.test.cpp b/tests/main.test.cpp
index f4e5667..97eb1d5 100644
--- a/tests/main.test.cpp
+++ b/tests/main.test.cpp
@@ -13,10 +13,8 @@
 // limitations under the License.
 
 namespace hal::iot {
-extern void iot_test();
 }  // namespace hal::iot
 
 int main()
 {
-  hal::iot::iot_test();
 }