diff --git a/virtualizationmanager/src/composite.rs b/virtualizationmanager/src/composite.rs
index a4b7eae..681ec59 100644
--- a/virtualizationmanager/src/composite.rs
+++ b/virtualizationmanager/src/composite.rs
@@ -23,6 +23,8 @@
 use std::os::unix::io::AsRawFd;
 use std::path::{Path, PathBuf};
 
+use uuid::Uuid;
+
 /// Constructs a composite disk image for the given list of partitions, and opens it ready to use.
 ///
 /// Returns the composite disk image file, and a list of files whose file descriptors must be passed
@@ -105,6 +107,7 @@
                 partition_type: ImagePartitionType::LinuxFilesystem,
                 writable: partition.writable,
                 size,
+                part_guid: partition.guid.as_deref().map(Uuid::parse_str).transpose()?,
             })
         })
         .collect::<Result<_, Error>>()?;
diff --git a/virtualizationmanager/src/payload.rs b/virtualizationmanager/src/payload.rs
index 9d0c7d6..82d9ba0 100644
--- a/virtualizationmanager/src/payload.rs
+++ b/virtualizationmanager/src/payload.rs
@@ -289,6 +289,7 @@
         label: "payload-metadata".to_owned(),
         image: Some(metadata_file),
         writable: false,
+        guid: None,
     }];
 
     for (i, apex_info) in apex_infos.iter().enumerate() {
@@ -297,17 +298,20 @@
             label: format!("microdroid-apex-{}", i),
             image: Some(apex_file),
             writable: false,
+            guid: None,
         });
     }
     partitions.push(Partition {
         label: "microdroid-apk".to_owned(),
         image: Some(ParcelFileDescriptor::new(apk_file)),
         writable: false,
+        guid: None,
     });
     partitions.push(Partition {
         label: "microdroid-apk-idsig".to_owned(),
         image: Some(ParcelFileDescriptor::new(idsig_file)),
         writable: false,
+        guid: None,
     });
 
     // we've already checked that extra_apks and extraIdsigs are in the same size.
@@ -319,6 +323,7 @@
             label: format!("extra-apk-{i}"),
             image: Some(ParcelFileDescriptor::new(extra_apk_file)),
             writable: false,
+            guid: None,
         });
 
         partitions.push(Partition {
@@ -330,6 +335,7 @@
                     .with_context(|| format!("Failed to clone the extra idsig #{i}"))?,
             )),
             writable: false,
+            guid: None,
         });
     }
 
@@ -416,6 +422,7 @@
             label: "microdroid-vendor".to_owned(),
             image: Some(ParcelFileDescriptor::new(vendor_image)),
             writable: false,
+            guid: None,
         }],
     })
 }
@@ -439,6 +446,7 @@
         label: "vm-instance".to_owned(),
         image: Some(ParcelFileDescriptor::new(instance_file)),
         writable: true,
+        guid: None,
     }];
 
     if let Some(file) = storage_image {
@@ -446,6 +454,7 @@
             label: "encryptedstore".to_owned(),
             image: Some(ParcelFileDescriptor::new(file)),
             writable: true,
+            guid: None,
         });
     }