diff --git a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/CategoryType.kt b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/CategoryType.kt
index b535c6cc..d6e3cd07 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/CategoryType.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/CategoryType.kt
@@ -31,7 +31,7 @@ class CategoryType(
         row[CategoryTable.isDefault]
     )
 
-    fun manga(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<MangaNodeList> {
+    fun mangas(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<MangaNodeList> {
         return dataFetchingEnvironment.getValueFromDataLoader<Int, MangaNodeList>("MangaForCategoryDataLoader", id)
     }
 
diff --git a/server/src/main/resources/graphql-playground.html b/server/src/main/resources/graphql-playground.html
index bed46d95..a6ba496e 100644
--- a/server/src/main/resources/graphql-playground.html
+++ b/server/src/main/resources/graphql-playground.html
@@ -72,7 +72,7 @@
                 'query AllCategories {\n' +
                 '  categories {\n' +
                 '    nodes {\n' +
-                '      manga {\n' +
+                '      mangas {\n' +
                 '        nodes {\n' +
                 '          title\n' +
                 '        }\n' +