diff --git a/mu4e/mu4e-compose.el b/mu4e/mu4e-compose.el
index eb9647b4..ffb556d2 100644
--- a/mu4e/mu4e-compose.el
+++ b/mu4e/mu4e-compose.el
@@ -316,7 +316,7 @@ Our parent `message-mode' uses font-locking for the compose
 buffers; lets remap its faces so it uses the ones for mu4e."
   ;; normal headers
   (face-remap-add-relative 'message-header-name
-                           '((:inherit mu4e-header-key-face)))
+                           '((:inherit mu4e-header-field-face)))
   (face-remap-add-relative 'message-header-other
                            '((:inherit mu4e-header-value-face)))
   ;; special headers
diff --git a/mu4e/mu4e-vars.el b/mu4e/mu4e-vars.el
index dd0ffde5..beaf1edf 100644
--- a/mu4e/mu4e-vars.el
+++ b/mu4e/mu4e-vars.el
@@ -122,7 +122,13 @@ I.e. a message with the draft flag set."
 
 (defface mu4e-header-key-face
   '((t :inherit message-header-name :weight bold))
-  "Face for a header key (such as \"Foo\" in \"Subject:\ Foo\")."
+  "Face used to highlight items in various places."
+  :group 'mu4e-faces)
+
+(defface mu4e-header-field-face
+  '((t :weight bold))
+  "Face for a header field name (such as \"Subject:\" in \"Subject:\
+Foo\")."
   :group 'mu4e-faces)
 
 (defface mu4e-header-value-face