diff --git a/packages/swr/src/index.ts b/packages/swr/src/index.ts
index e85b98178..e70322913 100644
--- a/packages/swr/src/index.ts
+++ b/packages/swr/src/index.ts
@@ -703,7 +703,9 @@ export const ${swrKeyFnName} = (${queryKeyProps}) => [\`${route}\`${
 export const ${swrMutationFetcherName} = (${swrProps} ${swrMutationFetcherOptions}) => {
   return (_: string, ${swrMutationFetcherArg}: { arg: Arguments }): ${swrMutationFetcherType} => {
     return ${operationName}(${httpFnProperties}${
-      swrMutationFetcherOptions.length ? ', options' : ''
+      swrMutationFetcherOptions.length
+        ? (httpFnProperties.length ? ', ' : '') + 'options'
+        : ''
     });
   }
 }\n`;
diff --git a/tests/configs/swr.config.ts b/tests/configs/swr.config.ts
index 793fb48b4..1b699b4b7 100644
--- a/tests/configs/swr.config.ts
+++ b/tests/configs/swr.config.ts
@@ -145,4 +145,15 @@ export default defineConfig({
       },
     },
   },
+  nestedArrays: {
+    output: {
+      target: '../generated/swr/nested-arrays/endpoints.ts',
+      schemas: '../generated/swr/nested-arrays/model',
+      client: 'swr',
+      mock: true,
+    },
+    input: {
+      target: '../specifications/arrays.yaml',
+    },
+  },
 });