diff --git a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchIngestModule.java b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchIngestModule.java
index e22e73ae26..2bb902d68f 100644
--- a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchIngestModule.java
+++ b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchIngestModule.java
@@ -1,7 +1,7 @@
 /*
  * Autopsy Forensic Browser
  *
- * Copyright 2011-2014 Basis Technology Corp.
+ * Copyright 2011-2016 Basis Technology Corp.
  * Contact: carrier <at> sleuthkit <dot> org
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,13 +18,11 @@
  */
 package org.sleuthkit.autopsy.modules.fileextmismatch;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.logging.Level;
-import org.openide.util.Exceptions;
 import org.openide.util.NbBundle;
 import org.sleuthkit.autopsy.casemodule.Case;
 import org.sleuthkit.autopsy.casemodule.services.Blackboard;
@@ -40,7 +38,6 @@ import org.sleuthkit.autopsy.modules.filetypeid.FileTypeDetector;
 import org.sleuthkit.datamodel.AbstractFile;
 import org.sleuthkit.datamodel.BlackboardArtifact;
 import org.sleuthkit.datamodel.BlackboardArtifact.ARTIFACT_TYPE;
-import org.sleuthkit.datamodel.BlackboardAttribute;
 import org.sleuthkit.datamodel.TskCoreException;
 import org.sleuthkit.datamodel.TskData;
 import org.sleuthkit.datamodel.TskException;
@@ -58,6 +55,7 @@ public class FileExtMismatchIngestModule implements FileIngestModule {
     private static final HashMap<Long, IngestJobTotals> totalsForIngestJobs = new HashMap<>();
     private static final IngestModuleReferenceCounter refCounter = new IngestModuleReferenceCounter();
     private static Blackboard blackboard;
+    private FileTypeDetector detector;
 
     private static class IngestJobTotals {
 
@@ -94,6 +92,11 @@ public class FileExtMismatchIngestModule implements FileIngestModule {
 
         FileExtMismatchXML xmlLoader = FileExtMismatchXML.getDefault();
         SigTypeToExtMap = xmlLoader.load();
+        try {
+            this.detector = new FileTypeDetector();
+        } catch (FileTypeDetector.FileTypeDetectorInitException ex) {
+            throw new IngestModuleException("Could not create file extension mismatch module.", ex);
+        }
 
     }
 
@@ -157,7 +160,7 @@ public class FileExtMismatchIngestModule implements FileIngestModule {
         if (settings.skipFilesWithNoExtension() && currActualExt.isEmpty()) {
             return false;
         }
-        String currActualSigType = abstractFile.getMIMEType();
+        String currActualSigType = detector.getFileType(abstractFile);
         if (currActualSigType == null) {
             return false;
         }