diff --git a/core/compiler.common/src/org/jetbrains/kotlin/name/ClassId.kt b/core/compiler.common/src/org/jetbrains/kotlin/name/ClassId.kt
index 3f73bd30ef2..0a9d00c8ed3 100644
--- a/core/compiler.common/src/org/jetbrains/kotlin/name/ClassId.kt
+++ b/core/compiler.common/src/org/jetbrains/kotlin/name/ClassId.kt
@@ -26,7 +26,7 @@ import org.jetbrains.kotlin.utils.addToStdlib.runIf
  * the package, separated by dollar signs. If a class is an inner of local, relativeClassName would consist of two names,
  * the second one being the class' short name.
  */
-class ClassId(val packageFqName: FqName, val relativeClassName: FqName, val isLocal: Boolean) {
+data class ClassId(val packageFqName: FqName, val relativeClassName: FqName, val isLocal: Boolean) {
     constructor(packageFqName: FqName, topLevelName: Name) : this(packageFqName, FqName.topLevel(topLevelName), isLocal = false)
 
     init {
@@ -98,20 +98,6 @@ class ClassId(val packageFqName: FqName, val relativeClassName: FqName, val isLo
         }
     }
 
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (other == null || javaClass != other.javaClass) return false
-        val id = other as ClassId
-        return packageFqName == id.packageFqName && relativeClassName == id.relativeClassName && isLocal == id.isLocal
-    }
-
-    override fun hashCode(): Int {
-        var result = packageFqName.hashCode()
-        result = 31 * result + relativeClassName.hashCode()
-        result = 31 * result + isLocal.hashCode()
-        return result
-    }
-
     override fun toString(): String {
         return if (packageFqName.isRoot) "/" + asString() else asString()
     }