diff --git a/doc/src/sgml/ref/create_event_trigger.sgmlin b/doc/src/sgml/ref/create_event_trigger.sgmlin
index 3a6025dda..a818a518c 100644
--- a/doc/src/sgml/ref/create_event_trigger.sgmlin
+++ b/doc/src/sgml/ref/create_event_trigger.sgmlin
@@ -17,7 +17,7 @@
 CREATE EVENT TRIGGER name
     ON event
     [ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ]
-    EXECUTE PROCEDURE function name()
+    EXECUTE PROCEDURE function_name()
 </synopsis>
 </refsynopsisdiv>
 </refentry>
diff --git a/src/test/regress/expected/event_trigger.out b/src/test/regress/expected/event_trigger.out
index a9ae65e68..a37fb1d60 100644
--- a/src/test/regress/expected/event_trigger.out
+++ b/src/test/regress/expected/event_trigger.out
@@ -8,7 +8,7 @@ Syntax:
 CREATE EVENT TRIGGER name
     ON event
     [ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ]
-    EXECUTE PROCEDURE function name()
+    EXECUTE PROCEDURE function_name()
 
 \h drop event trigger
 Command:     DROP EVENT TRIGGER
@@ -750,7 +750,7 @@ Syntax:
 CREATE EVENT TRIGGER name
     ON event
     [ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ]
-    EXECUTE PROCEDURE function name()
+    EXECUTE PROCEDURE function_name()
 
 \h drop event trigger
 Command:     DROP EVENT TRIGGER
@@ -1492,7 +1492,7 @@ Syntax:
 CREATE EVENT TRIGGER name
     ON event
     [ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ]
-    EXECUTE PROCEDURE function name()
+    EXECUTE PROCEDURE function_name()
 
 \h drop event trigger
 Command:     DROP EVENT TRIGGER