diff --git a/kotlin/src/main/java/com/squareup/moshi/KotlinJsonAdapter.kt b/kotlin/src/main/java/com/squareup/moshi/KotlinJsonAdapter.kt
index f14faee..6f040e2 100644
--- a/kotlin/src/main/java/com/squareup/moshi/KotlinJsonAdapter.kt
+++ b/kotlin/src/main/java/com/squareup/moshi/KotlinJsonAdapter.kt
@@ -156,10 +156,9 @@ object KotlinJsonAdapterFactory : JsonAdapter.Factory {
     if (!annotations.isEmpty()) return null
 
     val rawType = Types.getRawType(type)
-    val platformType = ClassJsonAdapter.isPlatformType(rawType)
-    if (platformType) return null
-
+    if (rawType.isEnum) return null
     if (!rawType.isAnnotationPresent(KOTLIN_METADATA)) return null
+    if (ClassJsonAdapter.isPlatformType(rawType)) return null
 
     val constructor = rawType.kotlin.primaryConstructor ?: return null
     val parametersByName = constructor.parameters.associateBy { it.name }
diff --git a/kotlin/src/test/java/com/squareup/moshi/KotlinJsonAdapterTest.kt b/kotlin/src/test/java/com/squareup/moshi/KotlinJsonAdapterTest.kt
index da9e565..0fdefd0 100644
--- a/kotlin/src/test/java/com/squareup/moshi/KotlinJsonAdapterTest.kt
+++ b/kotlin/src/test/java/com/squareup/moshi/KotlinJsonAdapterTest.kt
@@ -178,7 +178,7 @@ class KotlinJsonAdapterTest {
   class AbsentNull(var a: Int?, var b: Int?)
 
   @Test fun repeatedValue() {
-    val moshi = Moshi.Builder().add(KotlinJsonAdapter.FACTORY).build()
+    val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory).build()
     val jsonAdapter = moshi.adapter(RepeatedValue::class.java)
 
     try {
@@ -395,7 +395,7 @@ class KotlinJsonAdapterTest {
   }
 
   @Test fun privateConstructor() {
-    val moshi = Moshi.Builder().add(KotlinJsonAdapter.FACTORY).build()
+    val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory).build()
     val jsonAdapter = moshi.adapter(PrivateConstructor::class.java)
 
     val encoded = PrivateConstructor.newInstance(3, 5)
@@ -446,7 +446,7 @@ class KotlinJsonAdapterTest {
   }
 
   @Test fun unsettableProperty() {
-    val moshi = Moshi.Builder().add(KotlinJsonAdapter.FACTORY).build()
+    val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory).build()
     try {
       moshi.adapter(UnsettableProperty::class.java)
       fail()
@@ -462,7 +462,7 @@ class KotlinJsonAdapterTest {
   }
 
   @Test fun nonPropertyConstructorParameter() {
-    val moshi = Moshi.Builder().add(KotlinJsonAdapter.FACTORY).build()
+    val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory).build()
     try {
       moshi.adapter(NonPropertyConstructorParameter::class.java)
       fail()
@@ -475,6 +475,19 @@ class KotlinJsonAdapterTest {
 
   class NonPropertyConstructorParameter(a: Int, val b: Int)
 
+  @Test fun kotlinEnumsAreNotCovered() {
+    val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory).build()
+    val adapter = moshi.adapter(UsingEnum::class.java)
+
+    assertThat(adapter.fromJson("""{"e": "A"}""")).isEqualTo(UsingEnum(KotlinEnum.A))
+  }
+
+  data class UsingEnum(val e: KotlinEnum)
+
+  enum class KotlinEnum {
+    A, B
+  }
+
   // TODO(jwilson): resolve generic types?
 
   @Retention(RUNTIME)