diff --git a/server/books/schema/inputs.py b/server/books/schema/inputs.py
index 663852ac..0afd5f86 100644
--- a/server/books/schema/inputs.py
+++ b/server/books/schema/inputs.py
@@ -13,6 +13,7 @@ class InputTypes(graphene.Enum):
     document_block = "document_block"
     content_list_item = "content_list_item"
     subtitle = "subtitle"
+    solution = "solution"
     readonly = "readonly"
 
 
diff --git a/server/books/schema/mutations/utils.py b/server/books/schema/mutations/utils.py
index 6a9058e2..ed02486c 100644
--- a/server/books/schema/mutations/utils.py
+++ b/server/books/schema/mutations/utils.py
@@ -6,8 +6,11 @@ import bleach
 from api.utils import get_object
 from assignments.models import Assignment
 from books.models import ContentBlock
+from core.logger import get_logger
 from wagtail.blocks import StreamValue
 
+logger = get_logger(__name__)
+
 
 class AssignmentParameterException(Exception):
     pass
@@ -46,6 +49,7 @@ ALLOWED_BLOCKS = (
     "document_block",
     "content_list_item",
     "subtitle",
+    "solution",
     "readonly",
 )
 
@@ -75,6 +79,7 @@ def handle_content_block(
     # todo: add all the content blocks
     # todo: sanitize user inputs!
     if content["type"] not in allowed_blocks:
+        logger.info("not in allowed blocks")
         return
 
     id = content.get("id")
@@ -136,6 +141,12 @@ def handle_content_block(
         content_type = "document_block"
         value = {"url": bleach.clean(content["value"]["url"])}
         return get_content_dict(content_type=content_type, id=id, value=value)
+    elif content["type"] == "solution":
+        content_type = "solution"
+        value = {
+            "text": handle_text(bleach.clean(content["value"]["text"], strip=True)),
+        }
+        return get_content_dict(content_type=content_type, id=id, value=value)
     elif content["type"] == "subtitle":
         content_type = "subtitle"
         value = {"text": bleach.clean(content["value"]["text"])}