diff --git a/core/src/main/java/org/eqasim/core/standalone_mode_choice/RunStandaloneModeChoice.java b/core/src/main/java/org/eqasim/core/standalone_mode_choice/RunStandaloneModeChoice.java
index c1b16a173..70a8402ed 100644
--- a/core/src/main/java/org/eqasim/core/standalone_mode_choice/RunStandaloneModeChoice.java
+++ b/core/src/main/java/org/eqasim/core/standalone_mode_choice/RunStandaloneModeChoice.java
@@ -7,6 +7,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.io.File;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.nio.file.Paths;