diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index 2431ba905e..0b2d7c4784 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -583,7 +583,7 @@ annotations.oneWindowWarning		= Annotations for a snapshot may only be opened in
 integration.fields.label			= Fields
 integration.referenceMarks.label	= ReferenceMarks
 integration.fields.caption			= Microsoft Word Fields are less likely to be accidentally modified, but cannot be shared with OpenOffice.
-integration.fields.fileFormatNotice = The document must be saved in the .doc or .docx file format.
+integration.fields.fileFormatNotice = The document must be saved in the .doc file format.
 integration.referenceMarks.caption	= OpenOffice ReferenceMarks are less likely to be accidentally modified, but cannot be shared with Microsoft Word.
 integration.referenceMarks.fileFormatNotice = The document must be saved in the .odt file format.