diff --git a/src/components/AddItemModal/SourceTypeStep/constants.ts b/src/components/AddItemModal/SourceTypeStep/constants.ts
index 1e9046154..56c9c680f 100644
--- a/src/components/AddItemModal/SourceTypeStep/constants.ts
+++ b/src/components/AddItemModal/SourceTypeStep/constants.ts
@@ -25,6 +25,10 @@ export const OptionTypes: TOption[] = [
     label: 'string',
     value: 'string',
   },
+  {
+    label: 'boolean',
+    value: 'boolean',
+  },
 ]
 
 export const OPTIONS: TOption[] = [
diff --git a/src/network/fetchSourcesData/index.ts b/src/network/fetchSourcesData/index.ts
index 7b0793de6..51d3cd457 100644
--- a/src/network/fetchSourcesData/index.ts
+++ b/src/network/fetchSourcesData/index.ts
@@ -142,7 +142,7 @@ export interface Schema {
   media_url?: string
   image_url?: string
   source_link?: string
-  attributes?: { [key: string]: string }
+  attributes?: { [key: string]: string | boolean }
 }
 
 export interface SchemaLink {