diff --git a/src/trace/implementations/merge_batcher.rs b/src/trace/implementations/merge_batcher.rs
index 2c0feec3f..680aa5306 100644
--- a/src/trace/implementations/merge_batcher.rs
+++ b/src/trace/implementations/merge_batcher.rs
@@ -82,6 +82,10 @@ where
                                 vals += 1;
                             }
                             upds += 1;
+                        } else {
+                            keys += 1;
+                            vals += 1;
+                            upds += 1;
                         }
                         prev_keyval = Some((key, val));
                     }
diff --git a/src/trace/implementations/merge_batcher_col.rs b/src/trace/implementations/merge_batcher_col.rs
index fcd9f5ff8..9c2faab12 100644
--- a/src/trace/implementations/merge_batcher_col.rs
+++ b/src/trace/implementations/merge_batcher_col.rs
@@ -86,6 +86,10 @@ where
                                 vals += 1;
                             }
                             upds += 1;
+                        } else {
+                            keys += 1;
+                            vals += 1;
+                            upds += 1;
                         }
                         prev_keyval = Some((key, val));
                     }