diff --git a/core-util/src/main/java/org/signal/core/util/StringExtensions.kt b/core-util-jvm/src/main/java/org/signal/core/util/StringExtensions.kt
similarity index 94%
rename from core-util/src/main/java/org/signal/core/util/StringExtensions.kt
rename to core-util-jvm/src/main/java/org/signal/core/util/StringExtensions.kt
index aa9bf019ab..80aa438af6 100644
--- a/core-util/src/main/java/org/signal/core/util/StringExtensions.kt
+++ b/core-util-jvm/src/main/java/org/signal/core/util/StringExtensions.kt
@@ -1,3 +1,8 @@
+/*
+ * Copyright 2024 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 package org.signal.core.util
 
 import kotlin.contracts.ExperimentalContracts