diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c703922b1d..d3653d78cd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-19  Philippe Waroquiers  <philippe.waroquiers@skynet.be>
+
+	* typeprint.c (_initialize_typeprint): Fix wrong prefixname arg
+	in add_prefix_cmd of set print type.
+
 2018-10-19  Tom Tromey  <tom@tromey.com>
 
 	PR tui/18388:
diff --git a/gdb/typeprint.c b/gdb/typeprint.c
index 7a0b7627ed..393d825fe5 100644
--- a/gdb/typeprint.c
+++ b/gdb/typeprint.c
@@ -847,7 +847,7 @@ Only one level of typedefs is unrolled.  See also \"ptype\"."));
 		  &showprinttypelist, "show print type ", 0, &showprintlist);
   add_prefix_cmd ("type", no_class, set_print_type,
 		  _("Generic command for setting how types print."),
-		  &setprinttypelist, "show print type ", 0, &setprintlist);
+		  &setprinttypelist, "set print type ", 0, &setprintlist);
 
   add_setshow_boolean_cmd ("methods", no_class, &print_methods,
 			   _("\