diff --git a/doc/user_guide/interactions/parameters.rst b/doc/user_guide/interactions/parameters.rst
index 7f3acd1b3..aa1e0443f 100644
--- a/doc/user_guide/interactions/parameters.rst
+++ b/doc/user_guide/interactions/parameters.rst
@@ -513,7 +513,7 @@ Combining Parameters
 
 Multiple parameters can be combined in a single chart,
 either via multiple separate response conditions,
-different conditional branches in :fun:`when`,
+different conditional branches in :func:`when`,
 or parameter composition.
 
 Multiple conditions