diff --git a/packages/server/src/guard/document-auth.guard.ts b/packages/server/src/guard/document-auth.guard.ts
index 0e2c4144..f701e9e5 100644
--- a/packages/server/src/guard/document-auth.guard.ts
+++ b/packages/server/src/guard/document-auth.guard.ts
@@ -32,7 +32,8 @@ export class DocumentAuthorityGuard implements CanActivate {
 
     const user = this.jwtService.decode(token) as IUser;
     const { params, query, body } = request;
-    const documentId = params.id || params.documentId || query.id || query.documentId || body.documentId;
+    const documentId = params?.id || params?.documentId || query?.id || query?.documentId || body?.documentId;
+
     let document = null;
 
     if (documentId) {
diff --git a/packages/server/src/guard/document-status.guard.ts b/packages/server/src/guard/document-status.guard.ts
index 2efcc14a..e16db924 100644
--- a/packages/server/src/guard/document-status.guard.ts
+++ b/packages/server/src/guard/document-status.guard.ts
@@ -19,7 +19,7 @@ export class DocumentStatusGuard implements CanActivate {
 
     const request = context.switchToHttp().getRequest();
     const { params, query, body } = request;
-    const documentId = params.id || params.documentId || query.id || query.documentId || body.documentId;
+    const documentId = params?.id || params?.documentId || query?.id || query?.documentId || body?.documentId;
 
     let document = null;
 
diff --git a/packages/server/src/guard/wiki-status.guard.ts b/packages/server/src/guard/wiki-status.guard.ts
index 69ae6689..bfcd91a8 100644
--- a/packages/server/src/guard/wiki-status.guard.ts
+++ b/packages/server/src/guard/wiki-status.guard.ts
@@ -19,7 +19,7 @@ export class WikiStatusGuard implements CanActivate {
 
     const request = context.switchToHttp().getRequest();
     const { params, query, body } = request;
-    const wikiId = params.id || params.wikiId || query.id || query.wikiId || body.wikiId;
+    const wikiId = params?.id || params?.wikiId || query?.id || query?.wikiId || body?.wikiId;
 
     const wiki = await this.wikiService.findById(wikiId);
 
diff --git a/packages/server/src/guard/wiki-user.guard.ts b/packages/server/src/guard/wiki-user.guard.ts
index 9256d8ee..8089c779 100644
--- a/packages/server/src/guard/wiki-user.guard.ts
+++ b/packages/server/src/guard/wiki-user.guard.ts
@@ -35,7 +35,7 @@ export class WikiUserRoleGuard implements CanActivate {
     const user = this.jwtService.decode(token) as IUser;
 
     const { params, query, body } = request;
-    const wikiId = params.id || params.wikiId || query.id || query.wikiId || body.wikiId;
+    const wikiId = params?.id || params?.wikiId || query?.id || query?.wikiId || body?.wikiId;
 
     const wiki = await this.wikiService.findById(wikiId);