diff --git a/fe/fe-core/src/main/java/org/apache/doris/mysql/MysqlProto.java b/fe/fe-core/src/main/java/org/apache/doris/mysql/MysqlProto.java
index 7c14037a6f..d5635b1afd 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/mysql/MysqlProto.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/mysql/MysqlProto.java
@@ -298,7 +298,7 @@ public class MysqlProto {
                     context.getState().setError(ErrorCode.ERR_BAD_DB_ERROR, "No match catalog in doris: " + db);
                     return false;
                 }
-                if (catalogIf.getDbNullable(dbName) == null) {
+                if (catalogIf.getDbNullable(dbFullName) == null) {
                     context.getState().setError(ErrorCode.ERR_BAD_DB_ERROR, "No match database in doris: " + db);
                     return false;
                 }