diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index c97acda2d..bdae477bf 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.36.1",
+    "version": "2.36.2",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",
diff --git a/packages/hydrooj/src/handler/import.ts b/packages/hydrooj/src/handler/import.ts
index 17a668636..69707720d 100644
--- a/packages/hydrooj/src/handler/import.ts
+++ b/packages/hydrooj/src/handler/import.ts
@@ -294,8 +294,8 @@ class ProblemImportSYZOJHandler extends Handler {
         domainId: string, url: string, targetPid: string, hidden = false,
         prefix: string, start: number, end: number,
     ) {
-        if (/\/(\d+)\.\.(\d+)$/.test(url)) {
-            const res = /\/(\d+)\.\.(\d+)$/.exec(url)!;
+        if (/^(.+)\/(\d+)\.\.(\d+)$/.test(url)) {
+            const res = /^(.+)\/(\d+)\.\.(\d+)$/.exec(url)!;
             prefix = res[1];
             start = +res[2];
             end = +res[3];