diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/MoreSquareStripeButton.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/MoreSquareStripeButton.kt
similarity index 100%
rename from platform/platform-impl/src/com/intellij/openapi/wm/impl/MoreSquareStripeButton.java
rename to platform/platform-impl/src/com/intellij/openapi/wm/impl/MoreSquareStripeButton.kt