diff --git a/charts/vela-core/templates/defwithtemplate/init-container.yaml b/charts/vela-core/templates/defwithtemplate/init-container.yaml
index 593b534ee..4c5c3cfac 100644
--- a/charts/vela-core/templates/defwithtemplate/init-container.yaml
+++ b/charts/vela-core/templates/defwithtemplate/init-container.yaml
@@ -99,7 +99,7 @@ spec:
         	initMountPath: string
 
         	// +usage=Specify the extra volume mounts for the init container
-        	extraVolumeMounts: [{
+        	extraVolumeMounts: [...{
         		// +usage=The name of the volume to be mounted
         		name: string
         		// +usage=The mountPath for mount in the init container
diff --git a/charts/vela-minimal/templates/defwithtemplate/init-container.yaml b/charts/vela-minimal/templates/defwithtemplate/init-container.yaml
index 593b534ee..4c5c3cfac 100644
--- a/charts/vela-minimal/templates/defwithtemplate/init-container.yaml
+++ b/charts/vela-minimal/templates/defwithtemplate/init-container.yaml
@@ -99,7 +99,7 @@ spec:
         	initMountPath: string
 
         	// +usage=Specify the extra volume mounts for the init container
-        	extraVolumeMounts: [{
+        	extraVolumeMounts: [...{
         		// +usage=The name of the volume to be mounted
         		name: string
         		// +usage=The mountPath for mount in the init container
diff --git a/vela-templates/definitions/internal/trait/init-container.cue b/vela-templates/definitions/internal/trait/init-container.cue
index 1362661f4..af000805f 100644
--- a/vela-templates/definitions/internal/trait/init-container.cue
+++ b/vela-templates/definitions/internal/trait/init-container.cue
@@ -94,7 +94,7 @@ template: {
 		initMountPath: string
 
 		// +usage=Specify the extra volume mounts for the init container
-		extraVolumeMounts: [{
+		extraVolumeMounts: [...{
 			// +usage=The name of the volume to be mounted
 			name: string
 			// +usage=The mountPath for mount in the init container