diff --git a/internal/regulation/const.go b/internal/regulation/const.go
index 151183795..7260f2abb 100644
--- a/internal/regulation/const.go
+++ b/internal/regulation/const.go
@@ -3,4 +3,4 @@ package regulation
 import "fmt"
 
 // ErrUserIsBanned user is banned error message.
-var ErrUserIsBanned = fmt.Errorf("User is banned")
+var ErrUserIsBanned = fmt.Errorf("user is banned")