diff --git a/doc/conf.py.in b/doc/conf.py.in
index 20a0b8ff0..0682befc6 100644
--- a/doc/conf.py.in
+++ b/doc/conf.py.in
@@ -101,6 +101,7 @@ breathe_domain_by_extension = {
 breathe_use_project_refids = True
 
 myst_heading_anchors = 5
+myst_enable_extensions = ['colon_fence']
 
 # -- Options for HTML output -------------------------------------------------