diff --git a/atlas/templates/atlas/case_form.html b/atlas/templates/atlas/case_form.html
index 6a11db92..754607e5 100755
--- a/atlas/templates/atlas/case_form.html
+++ b/atlas/templates/atlas/case_form.html
@@ -72,7 +72,7 @@ Use this form to create a atlas case. Existing associated image sets can be adde
     {{ series_formset.management_form }}
     <h3>Differenetial:</h3>
     Add differential here.
-    <input type="button" value="Add More Series" id="add_more_differential">
+    <input type="button" value="Add Differential" id="add_more_differential">
     <div id="casedifferential_formset">
         {% for form in casedifferential_formset %}
         <ul class="no-error casedifferential_formset">
diff --git a/atlas/views.py b/atlas/views.py
index 3b7f1f82..599c1486 100755
--- a/atlas/views.py
+++ b/atlas/views.py
@@ -31,6 +31,7 @@ from .forms import (
     SeriesForm,
     SeriesImageFormSet,
     SeriesFormSet,
+    CaseDifferentialFormSet,
     ExaminationForm,
     SeriesFindingForm,
 )
@@ -306,14 +307,14 @@ class AtlasCreateBase(RevisionMixin, LoginRequiredMixin, CreateView):
             context["series_formset"] = SeriesFormSet(
                 self.request.POST, self.request.FILES
             )
-            context["casedifferential_formset"] = SeriesFormSet(
+            context["casedifferential_formset"] = CaseDifferentialFormSet(
                 self.request.POST, self.request.FILES
             )
             context["series_formset"].full_clean()
             context["casedifferential_formset"].full_clean()
         else:
             context["series_formset"] = SeriesFormSet()
-            context["casedifferential_formset"] = SeriesFormSet()
+            context["casedifferential_formset"] = CaseDifferentialFormSet()
         return context
 
     def form_valid(self, form):