diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 1e57ac7..d46ec22 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -304,8 +304,9 @@
            \( -iname cmake_install.cmake -o \
               -iname CTestTestfile.cmake -o \
               -iname CMakeCache.txt \) -exec rm {} \+
-    # Recover files overwritten by in-tree CMake builds
-    rm -f include/Makefile include/mbedtls/Makefile programs/!(fuzz)/Makefile
+    # Remove Makefiles generated by in-tree CMake builds
+    rm -f 3rdparty/Makefile 3rdparty/*/Makefile pkgconfig/Makefile
+    rm -f include/Makefile programs/!(fuzz)/Makefile
 
     # Remove any artifacts from the component_test_cmake_as_subdirectory test.
     rm -rf programs/test/cmake_subproject/build