diff --git a/regression/verilog/events/guard1.desc b/regression/verilog/events/guard1.desc
index 4a808018e..345cbb88e 100644
--- a/regression/verilog/events/guard1.desc
+++ b/regression/verilog/events/guard1.desc
@@ -1,8 +1,7 @@
-KNOWNBUG
+CORE
 guard1.sv
 
 ^EXIT=10$
 ^SIGNAL=0$
 --
 --
-This does not parse.
diff --git a/src/verilog/parser.y b/src/verilog/parser.y
index 0f1ec0324..2b7e9150a 100644
--- a/src/verilog/parser.y
+++ b/src/verilog/parser.y
@@ -3993,7 +3993,7 @@ delay_control:
         ;
 
 event_control:
-          '@' event_identifier
+          '@' hierarchical_identifier
                 { init($$, ID_event_guard); mto($$, $2); }
         | '@' '(' ored_event_expression ')'
                 { init($$, ID_event_guard); mto($$, $3); }