diff --git a/README.md b/README.md
index 72131f6..7c50e36 100644
--- a/README.md
+++ b/README.md
@@ -56,9 +56,3 @@ Run the task "test":
 ```shell
 ./gradlew test
 ```
-
-## TimSort
-
-Imported from
-- src/java.base/share/classes/java/util/TimSort.java
-- src/java.base/share/classes/java/util/ComparableTimSort.java
diff --git a/app/src/main/java/de/uni_marburg/powersort/sort/ComparableTimSort.java b/app/src/main/java/de/uni_marburg/powersort/sort/ComparableTimSort.java
index 8396420..1d0b78b 100644
--- a/app/src/main/java/de/uni_marburg/powersort/sort/ComparableTimSort.java
+++ b/app/src/main/java/de/uni_marburg/powersort/sort/ComparableTimSort.java
@@ -24,6 +24,10 @@
  * questions.
  */
 
+/*
+ * Imported from OpenJDK git repo ComparableTimSort.java
+ */
+
 package de.uni_marburg.powersort.sort;
 
 /**
diff --git a/app/src/main/java/de/uni_marburg/powersort/sort/TimSort.java b/app/src/main/java/de/uni_marburg/powersort/sort/TimSort.java
index 3bab3b7..0a3958f 100644
--- a/app/src/main/java/de/uni_marburg/powersort/sort/TimSort.java
+++ b/app/src/main/java/de/uni_marburg/powersort/sort/TimSort.java
@@ -24,6 +24,10 @@
  * questions.
  */
 
+/*
+ * Imported from OpenJDK git repo TimSort.java
+ */
+
 package de.uni_marburg.powersort.sort;
 
 import java.util.Comparator;