diff --git a/python/python-psi-api/src/com/jetbrains/python/psi/PyPattern.java b/python/python-psi-api/src/com/jetbrains/python/psi/PyPattern.kt
similarity index 100%
rename from python/python-psi-api/src/com/jetbrains/python/psi/PyPattern.java
rename to python/python-psi-api/src/com/jetbrains/python/psi/PyPattern.kt
diff --git a/python/python-psi-impl/src/com/jetbrains/python/psi/impl/PyCaseClauseImpl.java b/python/python-psi-impl/src/com/jetbrains/python/psi/impl/PyCaseClauseImpl.kt
similarity index 100%
rename from python/python-psi-impl/src/com/jetbrains/python/psi/impl/PyCaseClauseImpl.java
rename to python/python-psi-impl/src/com/jetbrains/python/psi/impl/PyCaseClauseImpl.kt