diff --git a/.changelog/26279.txt b/.changelog/26279.txt
new file mode 100644
index 000000000..5551a6f52
--- /dev/null
+++ b/.changelog/26279.txt
@@ -0,0 +1,3 @@
+```release-note:breaking-change
+sysbatch: Submitting a sysbatch job with a `reschedule` block will now return an error instead of being silently ignored
+```
diff --git a/api/tasks.go b/api/tasks.go
index 3c8c8554e..3f3ea4f07 100644
--- a/api/tasks.go
+++ b/api/tasks.go
@@ -202,6 +202,9 @@ func (r *ReschedulePolicy) Merge(rp *ReschedulePolicy) {
 }
 
 func (r *ReschedulePolicy) Canonicalize(jobType string) {
+	if r == nil || jobType == JobTypeSystem || jobType == JobTypeSysbatch {
+		return
+	}
 	dp := NewDefaultReschedulePolicy(jobType)
 	if r.Interval == nil {
 		r.Interval = dp.Interval
@@ -282,16 +285,6 @@ func NewDefaultReschedulePolicy(jobType string) *ReschedulePolicy {
 			Unlimited: pointerOf(false),
 		}
 
-	case "system":
-		dp = &ReschedulePolicy{
-			Attempts:      pointerOf(0),
-			Interval:      pointerOf(time.Duration(0)),
-			Delay:         pointerOf(time.Duration(0)),
-			DelayFunction: pointerOf(""),
-			MaxDelay:      pointerOf(time.Duration(0)),
-			Unlimited:     pointerOf(false),
-		}
-
 	default:
 		// GH-7203: it is possible an unknown job type is passed to this
 		// function and we need to ensure a non-nil object is returned so that
@@ -583,13 +576,10 @@ func (g *TaskGroup) Canonicalize(job *Job) {
 		jobReschedule := job.Reschedule.Copy()
 		g.ReschedulePolicy = jobReschedule
 	}
-	// Only use default reschedule policy for non system jobs
-	if g.ReschedulePolicy == nil && *job.Type != "system" {
+	if g.ReschedulePolicy == nil && *job.Type != JobTypeSysbatch && *job.Type != JobTypeSystem {
 		g.ReschedulePolicy = NewDefaultReschedulePolicy(*job.Type)
 	}
-	if g.ReschedulePolicy != nil {
-		g.ReschedulePolicy.Canonicalize(*job.Type)
-	}
+	g.ReschedulePolicy.Canonicalize(*job.Type)
 
 	// Merge the migrate strategy from the job
 	if jm, tm := job.Migrate != nil, g.Migrate != nil; jm && tm {
diff --git a/nomad/structs/structs.go b/nomad/structs/structs.go
index 008649d80..184b4b632 100644
--- a/nomad/structs/structs.go
+++ b/nomad/structs/structs.go
@@ -7112,9 +7112,9 @@ func (tg *TaskGroup) Validate(j *Job) error {
 		}
 	}
 
-	if j.Type == JobTypeSystem {
+	if j.Type == JobTypeSystem || j.Type == JobTypeSysBatch {
 		if tg.ReschedulePolicy != nil {
-			mErr = multierror.Append(mErr, fmt.Errorf("System jobs should not have a reschedule policy"))
+			mErr = multierror.Append(mErr, fmt.Errorf("System or sysbatch jobs should not have a reschedule policy"))
 		}
 	} else {
 		if tg.ReschedulePolicy != nil {
diff --git a/nomad/structs/structs_test.go b/nomad/structs/structs_test.go
index eab6d433a..d534df968 100644
--- a/nomad/structs/structs_test.go
+++ b/nomad/structs/structs_test.go
@@ -1512,7 +1512,7 @@ func TestTaskGroup_Validate(t *testing.T) {
 				},
 			},
 			expErr: []string{
-				"System jobs should not have a reschedule policy",
+				"System or sysbatch jobs should not have a reschedule policy",
 			},
 			jobType: JobTypeSystem,
 		},
diff --git a/website/content/docs/upgrade/upgrade-specific.mdx b/website/content/docs/upgrade/upgrade-specific.mdx
index d3f5fb282..9254888f9 100644
--- a/website/content/docs/upgrade/upgrade-specific.mdx
+++ b/website/content/docs/upgrade/upgrade-specific.mdx
@@ -12,6 +12,14 @@ upgrade. However, specific versions of Nomad may have more details provided for
 their upgrades as a result of new features or changed behavior. This page is
 used to document those details separately from the standard upgrade flow.
 
+## Nomad 1.11.0
+
+#### Sysbatch jobs will no longer accept `reschedule` blocks
+
+In Nomad 1.11.0, submitting a sysbatch job with a `reschedule` block returns
+an error instead of being silently ignored, as it was in previous versions. The
+same behavior applies to system jobs. 
+
 ## Nomad 1.10.2
 
 #### Clients respect `telemetry.publish_allocation_metrics`