diff --git a/lib/watcher.js b/lib/watcher.js
index c79e244..2b33796 100644
--- a/lib/watcher.js
+++ b/lib/watcher.js
@@ -159,7 +159,7 @@ class Watcher
             file.canRead = true
 
             // Test mime type
-            if(mimeType.match(/^(audio)|(video)|(image)/) && extension !== '.ts')
+            if(mimeType && mimeType.match(/^(audio)|(video)|(image)/) && extension !== '.ts')
             {
                 file.canRead = false
             }
@@ -220,7 +220,7 @@ class Watcher
             file.canRead = true
 
             // Test mime type
-            if(mimeType.match(/^(audio)|(video)|(image)/) && extension !== '.ts')
+            if(mimeType && mimeType.match(/^(audio)|(video)|(image)/) && extension !== '.ts')
             {
                 file.canRead = false
             }