diff --git a/authentik/stages/prompt/migrations/0005_alter_prompt_field_key.py b/authentik/stages/prompt/migrations/0005_alter_prompt_field_key.py
new file mode 100644
index 000000000..83c849746
--- /dev/null
+++ b/authentik/stages/prompt/migrations/0005_alter_prompt_field_key.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2.8 on 2021-10-10 16:54
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("authentik_stages_prompt", "0004_prompt_sub_text"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="prompt",
+            name="field_key",
+            field=models.TextField(
+                help_text="Name of the form field, also used to store the value"
+            ),
+        ),
+    ]
diff --git a/authentik/stages/prompt/models.py b/authentik/stages/prompt/models.py
index 48a7c4b61..67524873a 100644
--- a/authentik/stages/prompt/models.py
+++ b/authentik/stages/prompt/models.py
@@ -57,7 +57,7 @@ class Prompt(SerializerModel):
 
     prompt_uuid = models.UUIDField(primary_key=True, editable=False, default=uuid4)
 
-    field_key = models.SlugField(
+    field_key = models.TextField(
         help_text=_("Name of the form field, also used to store the value")
     )
     label = models.TextField()
diff --git a/schema.yml b/schema.yml
index 1552f2838..58fc8284c 100644
--- a/schema.yml
+++ b/schema.yml
@@ -26264,8 +26264,6 @@ components:
         field_key:
           type: string
           description: Name of the form field, also used to store the value
-          maxLength: 50
-          pattern: ^[-a-zA-Z0-9_]+$
         label:
           type: string
         type:
@@ -27145,8 +27143,6 @@ components:
         field_key:
           type: string
           description: Name of the form field, also used to store the value
-          maxLength: 50
-          pattern: ^[-a-zA-Z0-9_]+$
         label:
           type: string
         type:
@@ -27211,8 +27207,6 @@ components:
         field_key:
           type: string
           description: Name of the form field, also used to store the value
-          maxLength: 50
-          pattern: ^[-a-zA-Z0-9_]+$
         label:
           type: string
         type: