diff --git a/libraries/ESP8266WebServer/src/detail/mimetable.cpp b/libraries/ESP8266WebServer/src/detail/mimetable.cpp
index 8a36d0f888..5c6b654cc0 100644
--- a/libraries/ESP8266WebServer/src/detail/mimetable.cpp
+++ b/libraries/ESP8266WebServer/src/detail/mimetable.cpp
@@ -62,7 +62,7 @@ const Entry mimeTable[maxType] PROGMEM =
 {
     { kHtmlSuffix, kHtml },
     { kHtmSuffix, kHtml },
-    { kTxtSuffix, kTxtSuffix },
+    { kTxtSuffix, kTxt },
 #ifndef MIMETYPE_MINIMAL
     { kCssSuffix, kCss },
     { kJsSuffix, kJs },