diff --git a/src/install.libs.R b/src/install.libs.R
index e4fcec88..37c33c02 100644
--- a/src/install.libs.R
+++ b/src/install.libs.R
@@ -236,6 +236,10 @@ useBundledTbb <- function() {
       full.names = TRUE
    )
 
+   # clear any artifacts from prior builds, so that we only ship
+   # the libraries produced by the build above
+   unlink("tbb/build/lib_release", recursive = TRUE)
+
    dir.create("tbb/build/lib_release", recursive = TRUE, showWarnings = FALSE)
    file.copy(tbbFiles, "tbb/build/lib_release", overwrite = TRUE)
    unlink("tbb/build-tbb", recursive = TRUE)
diff --git a/tools/config/cleanup.R b/tools/config/cleanup.R
index 7746f1bc..1141a790 100644
--- a/tools/config/cleanup.R
+++ b/tools/config/cleanup.R
@@ -2,8 +2,11 @@
 # Clean up files generated during configuration here.
 # Use 'remove_file()' to remove files generated during configuration.
 
-# unlink("src/tbb/build", recursive = TRUE)
-# unlink("src/tbb/build-tbb", recursive = TRUE)
+# NOTE: stale artifacts in src/tbb/build can otherwise be swept into the
+# installed package; the bundled TBB is rebuilt from scratch on each
+# install, so nothing is lost by removing these
+unlink("src/tbb/build", recursive = TRUE)
+unlink("src/tbb/build-tbb", recursive = TRUE)
 unlink("inst/lib",  recursive = TRUE)
 unlink("inst/libs", recursive = TRUE)
 unlink("inst/include/index.html", recursive = TRUE)