diff --git a/ohmg/api/schemas.py b/ohmg/api/schemas.py
index e03aae15..fa1f9eff 100644
--- a/ohmg/api/schemas.py
+++ b/ohmg/api/schemas.py
@@ -96,6 +96,7 @@ class MapListSchema2(Schema):
     region_ct: int
     prepared_ct: int
     layer_ct: int
+    main_layer_ct: int
     skip_ct: int
     nonmap_ct: int
     completion_pct: int
diff --git a/ohmg/core/admin.py b/ohmg/core/admin.py
index 31e9282e..96660f5b 100644
--- a/ohmg/core/admin.py
+++ b/ohmg/core/admin.py
@@ -23,6 +23,7 @@ class MapAdmin(admin.ModelAdmin):
         "region_ct",
         "prepared_ct",
         "layer_ct",
+        "main_layer_ct",
         "skip_ct",
         "nonmap_ct",
         "completion_pct",
diff --git a/ohmg/core/migrations/0011_map_main_layer_ct.py b/ohmg/core/migrations/0011_map_main_layer_ct.py
new file mode 100644
index 00000000..794f318c
--- /dev/null
+++ b/ohmg/core/migrations/0011_map_main_layer_ct.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.27 on 2026-04-24 19:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0010_remove_layerset_multimask'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='map',
+            name='main_layer_ct',
+            field=models.IntegerField(default=0),
+        ),
+    ]
diff --git a/ohmg/core/models/map.py b/ohmg/core/models/map.py
index cb0cdd43..50345a0b 100644
--- a/ohmg/core/models/map.py
+++ b/ohmg/core/models/map.py
@@ -150,6 +150,9 @@ class Meta:
     layer_ct = models.IntegerField(
         default=0,
     )
+    main_layer_ct = models.IntegerField(
+        default=0,
+    )
     skip_ct = models.IntegerField(
         default=0,
     )
@@ -404,6 +407,7 @@ def update_item_lookup(self):
         self.region_ct = region_ct
         self.prepared_ct = prepared_ct
         self.layer_ct = layer_ct
+        self.main_layer_ct = main_lyrs_ct
         self.skip_ct = skip_ct
         self.nonmap_ct = nonmap_ct
         self.completion_pct = completion_pct
@@ -418,6 +422,7 @@ def update_item_lookup(self):
                 "region_ct",
                 "prepared_ct",
                 "layer_ct",
+                "main_layer_ct",
                 "skip_ct",
                 "nonmap_ct",
                 "completion_pct",
diff --git a/ohmg/core/views.py b/ohmg/core/views.py
index 4fa9f65d..36950987 100644
--- a/ohmg/core/views.py
+++ b/ohmg/core/views.py
@@ -475,6 +475,7 @@ def post(self, request):
                     logger.debug(f"removing mask from layer {layer.slug} ({layer.pk})")
                     layer.mask = None
                 layer.save(set_extent=False, skip_map_lookup_update=True)
+            layerset.map.update_item_lookup()
             return JsonResponseSuccess()
 
 
diff --git a/ohmg/frontend/svelte_components/src/components/tables/Maps.svelte b/ohmg/frontend/svelte_components/src/components/tables/Maps.svelte
index edfb7d38..10cb3810 100644
--- a/ohmg/frontend/svelte_components/src/components/tables/Maps.svelte
+++ b/ohmg/frontend/svelte_components/src/components/tables/Maps.svelte
@@ -249,7 +249,7 @@
               <td class="number-col">{s.skip_ct}</td>
               <td class="number-col">{s.nonmap_ct}</td>
               <td class="number-col new-col"><div class="box" style="--p:{s.completion_pct};"></div></td>
-              <td class="number-col new-col">{s.multimask_ct}/{s.layer_ct}</td>
+              <td class="number-col new-col">{s.multimask_ct}/{s.main_layer_ct}</td>
               <td class="number-col new-col"
                 >{#if s.gt_exists}
                   <span style="color:green">✓</span>