diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/Callable.java b/compiler/backend/src/org/jetbrains/kotlin/codegen/Callable.kt
similarity index 100%
rename from compiler/backend/src/org/jetbrains/kotlin/codegen/Callable.java
rename to compiler/backend/src/org/jetbrains/kotlin/codegen/Callable.kt
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/CallableMethod.java b/compiler/backend/src/org/jetbrains/kotlin/codegen/CallableMethod.kt
similarity index 100%
rename from compiler/backend/src/org/jetbrains/kotlin/codegen/CallableMethod.java
rename to compiler/backend/src/org/jetbrains/kotlin/codegen/CallableMethod.kt