diff --git a/deploy/crds/workspaces.ecd.eclipse.org_devworkspaces_crd.yaml b/deploy/crds/workspaces.ecd.eclipse.org_devworkspaces_crd.yaml
index 336b0c282..b539fba2b 100644
--- a/deploy/crds/workspaces.ecd.eclipse.org_devworkspaces_crd.yaml
+++ b/deploy/crds/workspaces.ecd.eclipse.org_devworkspaces_crd.yaml
@@ -437,7 +437,7 @@ spec:
                             description: Optional specification of the path in the
                               container where project sources should be transferred/mounted
                               when `mountSources` is `true`. When omitted, the value
-                              of the `PROJECT_SOURCE` environment variable is used.
+                              of the `PROJECT_ROOT` environment variable is used.
                             type: string
                           volumes:
                             items:
diff --git a/deploy/crds/workspaces.ecd.eclipse.org_devworkspacetemplates_crd.yaml b/deploy/crds/workspaces.ecd.eclipse.org_devworkspacetemplates_crd.yaml
index bfe989317..d2df436c2 100644
--- a/deploy/crds/workspaces.ecd.eclipse.org_devworkspacetemplates_crd.yaml
+++ b/deploy/crds/workspaces.ecd.eclipse.org_devworkspacetemplates_crd.yaml
@@ -427,7 +427,7 @@ spec:
                         description: Optional specification of the path in the container
                           where project sources should be transferred/mounted when
                           `mountSources` is `true`. When omitted, the value of the
-                          `PROJECT_SOURCE` environment variable is used.
+                          `PROJECT_ROOT` environment variable is used.
                         type: string
                       volumes:
                         items:
diff --git a/pkg/apis/workspaces/v1alpha1/containerComponent.go b/pkg/apis/workspaces/v1alpha1/containerComponent.go
index 4b6881671..c1c106a79 100644
--- a/pkg/apis/workspaces/v1alpha1/containerComponent.go
+++ b/pkg/apis/workspaces/v1alpha1/containerComponent.go
@@ -57,7 +57,7 @@ type Container struct {
 	//
 	// Optional specification of the path in the container where
 	// project sources should be transferred/mounted when `mountSources` is `true`.
-	// When omitted, the value of the `PROJECT_SOURCE` environment variable is used.
+	// When omitted, the value of the `PROJECT_ROOT` environment variable is used.
 	SourceMapping string   `json:"sourceMapping"`
 }
 
diff --git a/schemas/devfile.json b/schemas/devfile.json
index 544ea32d2..8529c5a49 100644
--- a/schemas/devfile.json
+++ b/schemas/devfile.json
@@ -500,7 +500,7 @@
                 "type": "string"
               },
               "sourceMapping": {
-                "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_SOURCE` environment variable is used.",
+                "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_ROOT` environment variable is used.",
                 "type": "string"
               },
               "volumes": {
diff --git a/schemas/devworkspace-template-spec.json b/schemas/devworkspace-template-spec.json
index abc45be79..e3430af16 100644
--- a/schemas/devworkspace-template-spec.json
+++ b/schemas/devworkspace-template-spec.json
@@ -500,7 +500,7 @@
                 "type": "string"
               },
               "sourceMapping": {
-                "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_SOURCE` environment variable is used.",
+                "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_ROOT` environment variable is used.",
                 "type": "string"
               },
               "volumes": {
diff --git a/schemas/devworkspace-template.json b/schemas/devworkspace-template.json
index fb751ab79..580a8d01f 100644
--- a/schemas/devworkspace-template.json
+++ b/schemas/devworkspace-template.json
@@ -514,7 +514,7 @@
                     "type": "string"
                   },
                   "sourceMapping": {
-                    "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_SOURCE` environment variable is used.",
+                    "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_ROOT` environment variable is used.",
                     "type": "string"
                   },
                   "volumes": {
diff --git a/schemas/devworkspace.json b/schemas/devworkspace.json
index 04714a5d0..15770632d 100644
--- a/schemas/devworkspace.json
+++ b/schemas/devworkspace.json
@@ -523,7 +523,7 @@
                         "type": "string"
                       },
                       "sourceMapping": {
-                        "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_SOURCE` environment variable is used.",
+                        "description": "Optional specification of the path in the container where project sources should be transferred/mounted when `mountSources` is `true`. When omitted, the value of the `PROJECT_ROOT` environment variable is used.",
                         "type": "string"
                       },
                       "volumes": {