diff --git a/app/Http/Controllers/Admin/OtherController.php b/app/Http/Controllers/Admin/OtherController.php
index e1624aa..dfb4794 100755
--- a/app/Http/Controllers/Admin/OtherController.php
+++ b/app/Http/Controllers/Admin/OtherController.php
@@ -68,7 +68,7 @@ class OtherController extends CommonController
         // 课程统计
         $courseTypes = CourseType::with('courses')->where('is_chart',1)->get();
         foreach ($courseTypes as $courseType) {
-            $courseType->course_signs_total = CourseSign::where('course_id', $courseType->courses->pluck('id'))
+            $courseType->course_signs_total = CourseSign::whereIn('course_id', $courseType->courses->pluck('id'))
                 ->where('status', 1)
                 ->count();
         }