diff --git i/test.sh w/test.sh
index 4796ff11..a6627fec 100755
--- i/test.sh
+++ w/test.sh
@@ -148,7 +148,7 @@ function do_drogon_ctl_test()
                               -DCMAKE_POLICY_DEFAULT_CMP0091=NEW \
                               -DCMAKE_CXX_STANDARD=17"
     fi
-    cmake .. $cmake_gen
+    cmake .. $cmake_gen -DDrogon_DIR=$out/lib/cmake/Drogon -DTrantor_DIR=$out/lib/cmake/Trantor
 
     if [ $? -ne 0 ]; then
         echo "Failed to run CMake for example project"