diff --git a/pkgs/applications/editors/vscode/extensions/_maintainers/update-bin-srcs-lib.sh b/pkgs/applications/editors/vscode/extensions/_maintainers/update-bin-srcs-lib.sh
index e3d1e5fb1397..6a8968024c88 100755
--- a/pkgs/applications/editors/vscode/extensions/_maintainers/update-bin-srcs-lib.sh
+++ b/pkgs/applications/editors/vscode/extensions/_maintainers/update-bin-srcs-lib.sh
@@ -37,9 +37,8 @@ prefetchExtensionUnpacked() {
   1>&2 echo "zipStorePath='$zipStorePath'"
 
   function rm_tmpdir() {
-    1>&2 printf "rm -rf -- %q\n" "$tmpDir"
-    rm -rf -- "$tmpDir"
-    unset tmpDir
+    1>&2 printf "rm -rf %q\n" "$tmpDir"
+    rm -rf "$tmpDir"
     trap - INT TERM HUP EXIT
   }
   function make_trapped_tmpdir() {
diff --git a/pkgs/applications/editors/vscode/extensions/cpptools/update_helper.sh b/pkgs/applications/editors/vscode/extensions/cpptools/update_helper.sh
index 00ef77553242..3c1d68de79cd 100755
--- a/pkgs/applications/editors/vscode/extensions/cpptools/update_helper.sh
+++ b/pkgs/applications/editors/vscode/extensions/cpptools/update_helper.sh
@@ -44,9 +44,7 @@ extStoreName="${extPublisher}-${extName}"
 
 
 function rm_tmpdir() {
-  #echo "Removing \`tmpDir='$tmpDir'\`"
-  rm -rf -- "$tmpDir"
-  unset tmpDir
+  rm -rf "$tmpDir"
   trap - INT TERM HUP EXIT
 }
 function make_trapped_tmpdir() {