diff --git a/app/src/main/java/protect/card_locker/ManageGroupsActivity.java b/app/src/main/java/protect/card_locker/ManageGroupsActivity.kt
similarity index 100%
rename from app/src/main/java/protect/card_locker/ManageGroupsActivity.java
rename to app/src/main/java/protect/card_locker/ManageGroupsActivity.kt