diff --git a/internal/workloads/chaos_disk.go b/internal/workloads/chaos_disk.go
index 0606358..a24635f 100644
--- a/internal/workloads/chaos_disk.go
+++ b/internal/workloads/chaos_disk.go
@@ -39,16 +39,12 @@ while true; do
 done
 `
 
-const chaosDiskSystemdUnitTemplate = `[Unit]
+const chaosDiskSystemdUnit = `[Unit]
 Description=Virtwork chaos-disk fill/release workload
 After=network.target local-fs.target
 
 [Service]
 Type=simple
-Environment="CHAOS_DISK_MOUNT=%s"
-Environment="CHAOS_DISK_FILL_PERCENT=%s"
-Environment="CHAOS_DISK_FILL_SLEEP=%s"
-Environment="CHAOS_DISK_RELEASE_SLEEP=%s"
 ExecStart=/usr/local/bin/chaos-disk.sh
 Restart=always
 RestartSec=10
@@ -132,11 +128,7 @@ func (w *ChaosDiskWorkload) CloudInitUserdata() (string, error) {
 		w.fillPercent(),
 		w.releaseSleep(),
 		w.fillSleep())
-	unit := fmt.Sprintf(chaosDiskSystemdUnitTemplate,
-		mountPoint,
-		w.fillPercent(),
-		w.fillSleep(),
-		w.releaseSleep())
+	unit := chaosDiskSystemdUnit
 
 	return w.BuildCloudConfig(CloudConfigOpts{
 		WriteFiles: []WriteFile{
diff --git a/internal/workloads/chaos_disk_test.go b/internal/workloads/chaos_disk_test.go
index b5a9dae..ed454b4 100644
--- a/internal/workloads/chaos_disk_test.go
+++ b/internal/workloads/chaos_disk_test.go
@@ -219,10 +219,8 @@ var _ = Describe("ChaosDiskWorkload", func() {
 			Expect(scriptContent).To(ContainSubstring(`FILL_SLEEP="60"`))
 			Expect(scriptContent).To(ContainSubstring(`RELEASE_SLEEP="30"`))
 
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_MOUNT=/mnt/data"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_FILL_PERCENT=90"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_FILL_SLEEP=60"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_RELEASE_SLEEP=30"))
+			Expect(unitContent).NotTo(ContainSubstring("Environment="))
+			Expect(unitContent).To(ContainSubstring("ExecStart=/usr/local/bin/chaos-disk.sh"))
 
 			Expect(setupContent).To(ContainSubstring("/mnt/data"))
 		})
@@ -265,10 +263,8 @@ var _ = Describe("ChaosDiskWorkload", func() {
 			Expect(scriptContent).To(ContainSubstring(`FILL_SLEEP="120"`))
 			Expect(scriptContent).To(ContainSubstring(`RELEASE_SLEEP="45"`))
 
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_MOUNT=/data"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_FILL_PERCENT=75"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_FILL_SLEEP=120"))
-			Expect(unitContent).To(ContainSubstring("CHAOS_DISK_RELEASE_SLEEP=45"))
+			Expect(unitContent).NotTo(ContainSubstring("Environment="))
+			Expect(unitContent).To(ContainSubstring("ExecStart=/usr/local/bin/chaos-disk.sh"))
 
 			Expect(setupContent).To(ContainSubstring("/data"))
 		})