diff --git a/src/code.cloudfoundry.org/test/acceptance-test-release/jobs/iptables-writer/templates/post-start.erb b/src/code.cloudfoundry.org/test/acceptance-test-release/jobs/iptables-writer/templates/post-start.erb
index c2c70095c..60d9f683c 100644
--- a/src/code.cloudfoundry.org/test/acceptance-test-release/jobs/iptables-writer/templates/post-start.erb
+++ b/src/code.cloudfoundry.org/test/acceptance-test-release/jobs/iptables-writer/templates/post-start.erb
@@ -9,7 +9,7 @@
 %>
 
 iptables_command="iptables"
-if ! command -v iptables_legacy &> /dev/null
+if command -v iptables-legacy &> /dev/null
 then
   iptables_command="iptables-legacy"
 fi