diff --git a/template_model/admin.py b/template_model/admin.py
index eec2109..429db3d 100644
--- a/template_model/admin.py
+++ b/template_model/admin.py
@@ -7,6 +7,13 @@
 class TemplateAdmin(admin.ModelAdmin):
     form = TemplateForm
     list_display = ('name', 'added', 'updated')
+    readonly_fields = ('template_file',)
 
+    def get_readonly_fields(self, request, obj=None):
+        # Allows to specify the template file at creation, but disable it on change forms.
+        if obj:
+            return self.readonly_fields
+        else:
+            return []
 
 admin.site.register(Template, TemplateAdmin)
diff --git a/template_model/forms.py b/template_model/forms.py
index 4707f1d..7d3259f 100644
--- a/template_model/forms.py
+++ b/template_model/forms.py
@@ -5,7 +5,7 @@
 
 
 class TemplateForm(forms.ModelForm):
-    template_file = forms.FileField(required=False, allow_empty_file=True)
+    #template_file = forms.FileField(required=False, allow_empty_file=True)
     content = forms.CharField(widget=forms.Textarea, required=False)
 
     class Meta:
@@ -24,4 +24,4 @@ def clean(self):
                 name=cleaned_data['name'])
         else:
             cleaned_data.pop('content')
-        return cleaned_data
+        return cleaned_data
\ No newline at end of file