diff --git a/Doc/howto/clinic.rst b/Doc/howto/clinic.rst
index 5b2457a..cfd9f2e 100644
--- a/Doc/howto/clinic.rst
+++ b/Doc/howto/clinic.rst
@@ -1,4 +1,4 @@
-.. highlightlang:: c
+.. highlight:: c
 
 **********************
 Argument Clinic How-To
diff --git a/Doc/howto/cporting.rst b/Doc/howto/cporting.rst
index b638e32..ce7700f 100644
--- a/Doc/howto/cporting.rst
+++ b/Doc/howto/cporting.rst
@@ -1,4 +1,4 @@
-.. highlightlang:: c
+.. highlight:: c
 
 .. _cporting-howto: