diff --git a/src/api2/types/mod.rs b/src/api2/types/mod.rs
index f97db557..1b9a305f 100644
--- a/src/api2/types/mod.rs
+++ b/src/api2/types/mod.rs
@@ -587,6 +587,8 @@ pub struct GarbageCollectionStatus {
     pub pending_chunks: usize,
     /// Number of chunks marked as .bad by verify that have been removed by GC.
     pub removed_bad: usize,
+    /// Number of chunks still marked as .bad after garbage collection.
+    pub still_bad: usize,
 }
 
 impl Default for GarbageCollectionStatus {
@@ -602,6 +604,7 @@ impl Default for GarbageCollectionStatus {
             pending_bytes: 0,
             pending_chunks: 0,
             removed_bad: 0,
+            still_bad: 0,
         }
     }
 }
diff --git a/src/backup/chunk_store.rs b/src/backup/chunk_store.rs
index 96c46efb..b7556f8a 100644
--- a/src/backup/chunk_store.rs
+++ b/src/backup/chunk_store.rs
@@ -354,9 +354,11 @@ impl ChunkStore {
                         },
                         Err(nix::Error::Sys(nix::errno::Errno::ENOENT)) => {
                             // chunk hasn't been rewritten yet, keep .bad file
+                            status.still_bad += 1;
                         },
                         Err(err) => {
                             // some other error, warn user and keep .bad file around too
+                            status.still_bad += 1;
                             crate::task_warn!(
                                 worker,
                                 "error during stat on '{:?}' - {}",