diff --git a/src/libs/kata-types/src/mount.rs b/src/libs/kata-types/src/mount.rs
index eac2afbffb..b557d8cdb1 100644
--- a/src/libs/kata-types/src/mount.rs
+++ b/src/libs/kata-types/src/mount.rs
@@ -47,6 +47,9 @@ pub const SANDBOX_BIND_MOUNTS_RO: &str = ":ro";
 /// SANDBOX_BIND_MOUNTS_RO is for sandbox bindmounts with readwrite
 pub const SANDBOX_BIND_MOUNTS_RW: &str = ":rw";
 
+/// KATA_VIRTUAL_VOLUME_PREFIX is for container image guest pull
+pub const KATA_VIRTUAL_VOLUME_PREFIX: &str = "io.katacontainers.volume=";
+
 /// Directly assign a block volume to vm and mount it inside guest.
 pub const KATA_VIRTUAL_VOLUME_DIRECT_BLOCK: &str = "direct_block";
 /// Present a container image as a generic block device.
@@ -532,7 +535,7 @@ pub fn adjust_rootfs_mounts() -> Result<Vec<Mount>> {
     // Create a new Vec<Mount> with a single Mount entry.
     // This Mount's options will contain the base64-encoded virtual volume.
     Ok(vec![Mount {
-        options: vec![format!("{}={}", "io.katacontainers.volume", b64_vol)],
+        options: vec![format!("{}{}", KATA_VIRTUAL_VOLUME_PREFIX, b64_vol)],
         ..Default::default() // Use default values for other Mount fields
     }])
 }
diff --git a/src/runtime-rs/crates/resource/src/rootfs/virtual_volume.rs b/src/runtime-rs/crates/resource/src/rootfs/virtual_volume.rs
index 32cf69a76a..882919b246 100644
--- a/src/runtime-rs/crates/resource/src/rootfs/virtual_volume.rs
+++ b/src/runtime-rs/crates/resource/src/rootfs/virtual_volume.rs
@@ -17,13 +17,12 @@ use hypervisor::device::device_manager::DeviceManager;
 use kata_types::{
     annotations,
     container::ContainerType,
-    mount::{KataVirtualVolume, KATA_VIRTUAL_VOLUME_IMAGE_GUEST_PULL},
+    mount::{KataVirtualVolume, KATA_VIRTUAL_VOLUME_IMAGE_GUEST_PULL, KATA_VIRTUAL_VOLUME_PREFIX},
 };
 
 /// Image guest-pull related consts
 const KUBERNETES_CRI_IMAGE_NAME: &str = "io.kubernetes.cri.image-name";
 const KUBERNETES_CRIO_IMAGE_NAME: &str = "io.kubernetes.cri-o.ImageName";
-const KATA_VIRTUAL_VOLUME_PREFIX: &str = "io.katacontainers.volume=";
 const KATA_VIRTUAL_VOLUME_TYPE_OVERLAY_FS: &str = "overlayfs";
 const KATA_GUEST_ROOT_SHARED_FS: &str = "/run/kata-containers/";