diff --git a/Lib/mimetypes.py b/Lib/mimetypes.py
index 01a16fdf9aa1b3..9b42bf6dd2ca74 100644
--- a/Lib/mimetypes.py
+++ b/Lib/mimetypes.py
@@ -414,6 +414,7 @@ def _default_mime_types():
         '.js'     : 'application/javascript',
         '.mjs'    : 'application/javascript',
         '.json'   : 'application/json',
+        '.webmanifest': 'application/manifest+json',
         '.doc'    : 'application/msword',
         '.dot'    : 'application/msword',
         '.wiz'    : 'application/msword',
diff --git a/Misc/NEWS.d/next/Library/2019-06-18-13-59-55.bpo-37305.fGzWlP.rst b/Misc/NEWS.d/next/Library/2019-06-18-13-59-55.bpo-37305.fGzWlP.rst
new file mode 100644
index 00000000000000..5bd2cd4d30afa1
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-06-18-13-59-55.bpo-37305.fGzWlP.rst
@@ -0,0 +1,2 @@
+Add .webmanifest -> application/manifest+json to list of recognized file types
+and content type headers