diff --git a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/Bundle.properties b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/Bundle.properties
index c5610f46ad..7c63074fbe 100644
--- a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/Bundle.properties
+++ b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/Bundle.properties
@@ -50,3 +50,5 @@ FileExtMismatchSettingsPanel.userExtTextField.text=
 FileExtMismatchSettingsPanel.addExtButton.text=Add Extension
 FileExtMismatchSettingsPanel.removeExtButton.text=Remove Selected Extension
 FileExtMismatchSettingsPanel.userTypeTextField.text=
+FileExtMismatchDetectorModuleFactory.getIngestJobSettingsPanel.exception.msg=Expected settings argument to be instanceof FileExtMismatchDetectorModuleSettings
+FileExtMismatchDetectorModuleFactory.createFileIngestModule.exception.msg=Expected settings argument to be instanceof FileExtMismatchDetectorModuleSettings
diff --git a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchDetectorModuleFactory.java b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchDetectorModuleFactory.java
index 645de2ba48..4eb9931d2e 100755
--- a/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchDetectorModuleFactory.java
+++ b/Core/src/org/sleuthkit/autopsy/modules/fileextmismatch/FileExtMismatchDetectorModuleFactory.java
@@ -70,7 +70,8 @@ public class FileExtMismatchDetectorModuleFactory extends IngestModuleFactoryAda
     public IngestModuleIngestJobSettingsPanel getIngestJobSettingsPanel(IngestModuleIngestJobSettings settings) {
         assert settings instanceof FileExtMismatchDetectorModuleSettings;
         if (!(settings instanceof FileExtMismatchDetectorModuleSettings)) {
-            throw new IllegalArgumentException("Expected settings argument to be instanceof FileExtMismatchDetectorModuleSettings");
+            throw new IllegalArgumentException(NbBundle.getMessage(this.getClass(),
+                                                                   "FileExtMismatchDetectorModuleFactory.getIngestJobSettingsPanel.exception.msg"));
         }
         FileExtMismatchModuleSettingsPanel settingsPanel = new FileExtMismatchModuleSettingsPanel((FileExtMismatchDetectorModuleSettings) settings);
         return settingsPanel;
@@ -97,7 +98,8 @@ public class FileExtMismatchDetectorModuleFactory extends IngestModuleFactoryAda
     public FileIngestModule createFileIngestModule(IngestModuleIngestJobSettings settings) {
         assert settings instanceof FileExtMismatchDetectorModuleSettings;
         if (!(settings instanceof FileExtMismatchDetectorModuleSettings)) {
-            throw new IllegalArgumentException("Expected settings argument to be instanceof FileExtMismatchDetectorModuleSettings");
+            throw new IllegalArgumentException(NbBundle.getMessage(this.getClass(),
+                                                                   "FileExtMismatchDetectorModuleFactory.createFileIngestModule.exception.msg"));
         }
         return new FileExtMismatchIngestModule((FileExtMismatchDetectorModuleSettings) settings);
     }