diff --git a/atomics/T1059.004/T1059.004.yaml b/atomics/T1059.004/T1059.004.yaml
index 388ce7c3..5b71a940 100644
--- a/atomics/T1059.004/T1059.004.yaml
+++ b/atomics/T1059.004/T1059.004.yaml
@@ -112,3 +112,4 @@ atomic_tests:
       bash $TMPFILE
     cleanup_command: |
       rm $TMPFILE
+      unset TMPFILE