diff --git a/docs/install.md b/docs/install.md
index 5d8d4d5ea95..e988092cb8e 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -383,6 +383,7 @@ Features currently in "alpha" are:
 - [Tekton Bundles](./taskruns.md#tekton-bundles)
 - [Custom Tasks](./runs.md)
 - [Isolated Step & Sidecar Workspaces](./workspaces.md#isolated-workspaces)
+- [Hermetic Execution Mode](./hermetic.md)
 
 ## Configuring High Availability
 
diff --git a/pkg/pod/pod.go b/pkg/pod/pod.go
index 4eb12f28fae..4698600879d 100644
--- a/pkg/pod/pod.go
+++ b/pkg/pod/pod.go
@@ -44,7 +44,7 @@ const (
 	TaskRunLabelKey = pipeline.GroupName + pipeline.TaskRunLabelKey
 
 	// TektonHermeticEnvVar is the env var we set in containers to indicate they should be run hermetically
-	TektonHermeticEnvVar = "HERMETIC"
+	TektonHermeticEnvVar = "TEKTON_HERMETIC"
 	// ExecutionModeAnnotation is an experimental optional annotation to set the execution mode on a TaskRun
 	ExecutionModeAnnotation = "experimental.tekton.dev/execution-mode"
 	// ExecutionModeHermetic indicates hermetic execution mode
diff --git a/pkg/pod/pod_test.go b/pkg/pod/pod_test.go
index 4a19b13fa5e..fd89b0a08da 100644
--- a/pkg/pod/pod_test.go
+++ b/pkg/pod/pod_test.go
@@ -1273,7 +1273,7 @@ script-heredoc-randomly-generated-78c5n
 					Resources:              corev1.ResourceRequirements{Requests: allZeroQty()},
 					TerminationMessagePath: "/tekton/termination",
 					Env: []corev1.EnvVar{
-						{Name: "HERMETIC", Value: "1"},
+						{Name: "TEKTON_HERMETIC", Value: "1"},
 					},
 				}},
 				Volumes: append(implicitVolumes, toolsVolume, downwardVolume, corev1.Volume{
@@ -1289,7 +1289,7 @@ script-heredoc-randomly-generated-78c5n
 					Name:    "name",
 					Image:   "image",
 					Command: []string{"cmd"}, // avoid entrypoint lookup.
-					Env:     []corev1.EnvVar{{Name: "HERMETIC", Value: "something_else"}},
+					Env:     []corev1.EnvVar{{Name: "TEKTON_HERMETIC", Value: "something_else"}},
 				}}},
 			},
 			trAnnotation: map[string]string{
@@ -1321,9 +1321,9 @@ script-heredoc-randomly-generated-78c5n
 					Resources:              corev1.ResourceRequirements{Requests: allZeroQty()},
 					TerminationMessagePath: "/tekton/termination",
 					Env: []corev1.EnvVar{
-						{Name: "HERMETIC", Value: "something_else"},
+						{Name: "TEKTON_HERMETIC", Value: "something_else"},
 						// this value must be second to override the first
-						{Name: "HERMETIC", Value: "1"},
+						{Name: "TEKTON_HERMETIC", Value: "1"},
 					},
 				}},
 				Volumes: append(implicitVolumes, toolsVolume, downwardVolume, corev1.Volume{