diff --git a/plugins/plugin20.html b/plugins/plugin20.html
index 32b479a7..fcdff2ed 100644
--- a/plugins/plugin20.html
+++ b/plugins/plugin20.html
@@ -1125,7 +1125,7 @@ You only need these kind of complex checks if you're saving user input, which ca
-Prototype: int xchat_pluginpref_list (xchat_plugin *ph, const char *dest);
+Prototype: int xchat_pluginpref_list (xchat_plugin *ph, char *dest);
Description: Builds a comma-separated list of the currently saved settings from a plugin-specific config file.