diff --git a/specifyweb/businessrules/rules/cojo_rules.py b/specifyweb/businessrules/rules/cojo_rules.py
index d4925fa5932..574cb3a5623 100644
--- a/specifyweb/businessrules/rules/cojo_rules.py
+++ b/specifyweb/businessrules/rules/cojo_rules.py
@@ -1,6 +1,6 @@
 from specifyweb.businessrules.exceptions import BusinessRuleException
 from specifyweb.businessrules.orm_signal_handler import orm_signal_handler
-from specifyweb.specify.models import Collectionobjectgroupjoin
+from specifyweb.specify.models import Collectionobjectgroupjoin, Collectionobjectgroup
 
 @orm_signal_handler('pre_save', 'Collectionobjectgroupjoin')
 def cojo_pre_save(cojo):
@@ -24,4 +24,9 @@ def cojo_pre_save(cojo):
         (Collectionobjectgroupjoin.objects
          .filter(parentcog=cojo.parentcog)
          .update(issubstrate=False))
-        
\ No newline at end of file
+        
+@orm_signal_handler('post_save', 'Collectionobjectgroupjoin')
+def cojo_post_save(cojo):
+    if cojo.childcog is not None:
+        cojo.childcog.parentcojo = cojo
+        cojo.childcog.save()
\ No newline at end of file
diff --git a/specifyweb/frontend/js_src/lib/components/FormCells/COJODialog.tsx b/specifyweb/frontend/js_src/lib/components/FormCells/COJODialog.tsx
index bd96517f493..f224be0ec71 100644
--- a/specifyweb/frontend/js_src/lib/components/FormCells/COJODialog.tsx
+++ b/specifyweb/frontend/js_src/lib/components/FormCells/COJODialog.tsx
@@ -76,14 +76,6 @@ export function COJODialog({
 
     newCOJO.set(field, resourceUrl as never);
     newCOJO.set('parentCog', parentResourceUrl as never);
-
-    if (resourceToUse.specifyTable.name === 'CollectionObjectGroup') {
-      (resourceToUse as SpecifyResource<CollectionObjectGroup>).set(
-        'parentCojo',
-        newCOJO
-      );
-    }
-
     collection?.add(newCOJO);
   };