diff --git a/lastleg-service/src/main/java/com/baiyue/lastleg/masterdata/exchange/ExchangeMapperConfiguration.java b/lastleg-service/src/main/java/com/baiyue/lastleg/masterdata/exchange/ExchangeMapperConfiguration.java
deleted file mode 100644
index 7a1d22ad4..000000000
--- a/lastleg-service/src/main/java/com/baiyue/lastleg/masterdata/exchange/ExchangeMapperConfiguration.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package com.baiyue.lastleg.masterdata.exchange;
-
-import org.mybatis.spring.annotation.MapperScan;
-import org.springframework.context.annotation.Configuration;
-
-/** 注册尾程主数据域的所有 Mapper。 */
-@Configuration
-@MapperScan("com.baiyue.lastleg.masterdata")
-public class ExchangeMapperConfiguration {
-}
diff --git a/lastleg-service/src/test/java/com/baiyue/lastleg/masterdata/MasterDataMapperConfigurationTest.java b/lastleg-service/src/test/java/com/baiyue/lastleg/masterdata/MasterDataMapperConfigurationTest.java
index 9bf3ebe8d..a38935e41 100644
--- a/lastleg-service/src/test/java/com/baiyue/lastleg/masterdata/MasterDataMapperConfigurationTest.java
+++ b/lastleg-service/src/test/java/com/baiyue/lastleg/masterdata/MasterDataMapperConfigurationTest.java
@@ -5,6 +5,7 @@ import org.junit.jupiter.api.Test;
 import org.mybatis.spring.annotation.MapperScan;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 class MasterDataMapperConfigurationTest {
     @Test
@@ -14,4 +15,11 @@ class MasterDataMapperConfigurationTest {
         assertThat(mapperScan.basePackages()).containsExactly("com.baiyue.lastleg.masterdata");
         assertThat(mapperScan.annotationClass()).isEqualTo(Mapper.class);
     }
+
+    @Test
+    void broadExchangeMapperScanMustNotBeReintroduced() {
+        assertThatThrownBy(() -> Class.forName(
+            "com.baiyue.lastleg.masterdata.exchange.ExchangeMapperConfiguration"))
+            .isInstanceOf(ClassNotFoundException.class);
+    }
 }