diff --git a/recipe/build-py.sh b/recipe/build-py.sh
index 2ad48562..f8c97139 100644
--- a/recipe/build-py.sh
+++ b/recipe/build-py.sh
@@ -38,6 +38,9 @@ cmake -G "Ninja"                                                            \
 
 cmake --build .
 
+# debug
+ls -R .
+
 # run actual build
 cmake -G "Ninja"                                                            \
     -DOPENCV_PYTHON_PIP_METADATA_INSTALL=ON                                 \
diff --git a/recipe/install-lib.bat b/recipe/install-lib.bat
index 1cfa5688..e33dd734 100644
--- a/recipe/install-lib.bat
+++ b/recipe/install-lib.bat
@@ -3,3 +3,6 @@
 cd build
 cmake --install .
 if %ERRORLEVEL% neq 0 exit 1
+
+cd ..
+rmdir /s /q build
diff --git a/recipe/install-lib.sh b/recipe/install-lib.sh
index 2901ec0d..7bcba0e8 100644
--- a/recipe/install-lib.sh
+++ b/recipe/install-lib.sh
@@ -3,3 +3,6 @@ set -ex
 
 cd build
 cmake --install .
+
+cd ..
+rm -rf build