diff --git a/crates/transaction-pool/src/blobstore/disk.rs b/crates/transaction-pool/src/blobstore/disk.rs
index 7dec332784..4c130b3529 100644
--- a/crates/transaction-pool/src/blobstore/disk.rs
+++ b/crates/transaction-pool/src/blobstore/disk.rs
@@ -82,8 +82,11 @@ impl DiskFileBlobStore {
                 for (hash_idx, match_result) in
                     blob_sidecar.match_versioned_hashes(versioned_hashes)
                 {
-                    result[hash_idx] = Some(match_result);
-                    missing_count -= 1;
+                    let slot = &mut result[hash_idx];
+                    if slot.is_none() {
+                        missing_count -= 1;
+                    }
+                    *slot = Some(match_result);
                 }
             }
 
diff --git a/crates/transaction-pool/src/blobstore/mem.rs b/crates/transaction-pool/src/blobstore/mem.rs
index 75dcfe6673..4d1b1ff77b 100644
--- a/crates/transaction-pool/src/blobstore/mem.rs
+++ b/crates/transaction-pool/src/blobstore/mem.rs
@@ -30,8 +30,11 @@ impl InMemoryBlobStore {
                 for (hash_idx, match_result) in
                     blob_sidecar.match_versioned_hashes(versioned_hashes)
                 {
-                    result[hash_idx] = Some(match_result);
-                    missing_count -= 1;
+                    let slot = &mut result[hash_idx];
+                    if slot.is_none() {
+                        missing_count -= 1;
+                    }
+                    *slot = Some(match_result);
                 }
             }