diff --git a/java/source/infodynamics/measures/continuous/kraskov/MutualInfoCalculatorMultiVariateKraskov.java b/java/source/infodynamics/measures/continuous/kraskov/MutualInfoCalculatorMultiVariateKraskov.java
index d3d041f..740392c 100755
--- a/java/source/infodynamics/measures/continuous/kraskov/MutualInfoCalculatorMultiVariateKraskov.java
+++ b/java/source/infodynamics/measures/continuous/kraskov/MutualInfoCalculatorMultiVariateKraskov.java
@@ -23,6 +23,7 @@ import java.util.PriorityQueue;
 import java.util.Random;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.io.File;
 
 import infodynamics.measures.continuous.MutualInfoCalculatorMultiVariate;
 import infodynamics.measures.continuous.MutualInfoMultiVariateCommon;