diff --git a/src/test/java/org/ohdsi/webapi/cohortcharacterization/CohortCharacterizationServiceTest.java b/src/test/java/org/ohdsi/webapi/cohortcharacterization/CohortCharacterizationServiceTest.java
index f010a5873..3d0882cd8 100644
--- a/src/test/java/org/ohdsi/webapi/cohortcharacterization/CohortCharacterizationServiceTest.java
+++ b/src/test/java/org/ohdsi/webapi/cohortcharacterization/CohortCharacterizationServiceTest.java
@@ -37,6 +37,7 @@
 import java.io.OutputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.sql.SQLException;
 import java.util.*;
 
@@ -207,6 +208,16 @@ private ZipFile getZipFile(Long id, ParamItem paramItem) throws IOException {
         }
         System.out.println("BAOS Size: " + baos.size());
         System.out.println("Temporary File Size: " + tempFile.length());
+        try {
+            List<String> lines = Files.readAllLines(Paths.get(tempFile.getAbsolutePath()));
+            System.out.println("File Contents:");
+            for (String line : lines) {
+                System.out.println(line);
+            }
+        } catch (IOException e) {
+            System.out.println("Error reading file.");
+            e.printStackTrace();
+        }
 
         return new ZipFile(tempFile);
     }