diff --git a/apps/converter/api.py b/apps/converter/api.py
index eb7aaade4b..03fb3cd791 100644
--- a/apps/converter/api.py
+++ b/apps/converter/api.py
@@ -27,7 +27,7 @@ QUALITY_SETTINGS = {QUALITY_DEFAULT: DEFAULT_OPTIONS,
     QUALITY_LOW: LOW_QUALITY_OPTIONS, QUALITY_HIGH: HIGH_QUALITY_OPTIONS}
 
 CONVERTER_OFFICE_FILE_EXTENSIONS = [
-    u'ods', u'docx'
+    u'ods', u'docx', u'doc'
 ]