diff --git a/src/SPC/doctor/item/BSDToolCheckList.php b/src/SPC/doctor/item/BSDToolCheckList.php
index 7f28e57e..2505227b 100644
--- a/src/SPC/doctor/item/BSDToolCheckList.php
+++ b/src/SPC/doctor/item/BSDToolCheckList.php
@@ -57,7 +57,7 @@ class BSDToolCheckList
             $prefix = '';
         }
         try {
-            shell(true)->exec("ASSUME_ALWAYS_YES=yes {$prefix} pkg install -y " . implode(' ', $missing));
+            shell(true)->exec("ASSUME_ALWAYS_YES=yes {$prefix}pkg install -y " . implode(' ', $missing));
         } catch (RuntimeException) {
             return false;
         }