diff --git a/src/test/kotlin/com/mapk/kmapper/ConverterKMapperTest.kt b/src/test/kotlin/com/mapk/kmapper/ConverterKMapperTest.kt
index 2373668..c619be7 100644
--- a/src/test/kotlin/com/mapk/kmapper/ConverterKMapperTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/ConverterKMapperTest.kt
@@ -33,7 +33,7 @@ private data class BoundStaticMethodConverterSrc(val argument: String)
 class ConverterKMapperTest {
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         @DisplayName("コンストラクターでのコンバートテスト")
         fun constructorConverterTest() {
diff --git a/src/test/kotlin/com/mapk/kmapper/DefaultArgumentTest.kt b/src/test/kotlin/com/mapk/kmapper/DefaultArgumentTest.kt
index 2a1adfa..9720ac1 100644
--- a/src/test/kotlin/com/mapk/kmapper/DefaultArgumentTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/DefaultArgumentTest.kt
@@ -15,7 +15,7 @@ class DefaultArgumentTest {
 
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         fun test() {
             val result = PlainKMapper(::Dst).map(src)
diff --git a/src/test/kotlin/com/mapk/kmapper/EnumMappingTest.kt b/src/test/kotlin/com/mapk/kmapper/EnumMappingTest.kt
index b637cd2..9515c3f 100644
--- a/src/test/kotlin/com/mapk/kmapper/EnumMappingTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/EnumMappingTest.kt
@@ -18,7 +18,7 @@ private class EnumMappingDst(val language: JvmLanguage?)
 class EnumMappingTest {
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         private val mapper = PlainKMapper(EnumMappingDst::class)
 
         @ParameterizedTest(name = "Non-Null要求")
diff --git a/src/test/kotlin/com/mapk/kmapper/KGetterIgnoreTest.kt b/src/test/kotlin/com/mapk/kmapper/KGetterIgnoreTest.kt
index 11ee9f9..a0de4e8 100644
--- a/src/test/kotlin/com/mapk/kmapper/KGetterIgnoreTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/KGetterIgnoreTest.kt
@@ -15,7 +15,7 @@ class KGetterIgnoreTest {
 
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         @DisplayName("フィールドを無視するテスト")
         fun test() {
diff --git a/src/test/kotlin/com/mapk/kmapper/ParameterNameConverterTest.kt b/src/test/kotlin/com/mapk/kmapper/ParameterNameConverterTest.kt
index eeb5da2..b243ebd 100644
--- a/src/test/kotlin/com/mapk/kmapper/ParameterNameConverterTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/ParameterNameConverterTest.kt
@@ -13,7 +13,7 @@ private data class BoundSrc(val camel_case: String)
 class ParameterNameConverterTest {
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         @DisplayName("スネークケースsrc -> キャメルケースdst")
         fun test() {
diff --git a/src/test/kotlin/com/mapk/kmapper/PropertyAliasTest.kt b/src/test/kotlin/com/mapk/kmapper/PropertyAliasTest.kt
index 9f49504..23638b7 100644
--- a/src/test/kotlin/com/mapk/kmapper/PropertyAliasTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/PropertyAliasTest.kt
@@ -22,7 +22,7 @@ private data class AliasedSrc(
 class PropertyAliasTest {
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         @DisplayName("パラメータにエイリアスを貼った場合")
         fun paramAliasTest() {
diff --git a/src/test/kotlin/com/mapk/kmapper/SimpleKMapperTest.kt b/src/test/kotlin/com/mapk/kmapper/SimpleKMapperTest.kt
index 33ec88d..12a0169 100644
--- a/src/test/kotlin/com/mapk/kmapper/SimpleKMapperTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/SimpleKMapperTest.kt
@@ -75,7 +75,7 @@ class SimpleKMapperTest {
 
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         private val mappers: Set<PlainKMapper<out SimpleDst>> = setOf(
             PlainKMapper(SimpleDst::class),
             PlainKMapper(::SimpleDst),
diff --git a/src/test/kotlin/com/mapk/kmapper/StringMappingTest.kt b/src/test/kotlin/com/mapk/kmapper/StringMappingTest.kt
index 0f6f8e9..0488639 100644
--- a/src/test/kotlin/com/mapk/kmapper/StringMappingTest.kt
+++ b/src/test/kotlin/com/mapk/kmapper/StringMappingTest.kt
@@ -12,7 +12,7 @@ private data class BoundMappingSrc(val value: Int)
 class StringMappingTest {
     @Nested
     @DisplayName("PlainKMapper")
-    inner class KMapperTest {
+    inner class PlainKMapperTest {
         @Test
         fun test() {
             val result: StringMappingDst = PlainKMapper(StringMappingDst::class).map("value" to 1)