diff --git a/test_regress/t/t_param_cast_default_struct.v b/test_regress/t/t_param_cast_default_struct.v
index 263f6f6aa..0093ead77 100644
--- a/test_regress/t/t_param_cast_default_struct.v
+++ b/test_regress/t/t_param_cast_default_struct.v
@@ -10,7 +10,7 @@
 // verilog_format: on
 
 // A parameter whose default is a cast of a member of a struct-typed
-// parameter.  
+// parameter.
 
 typedef struct packed {int unsigned CAP;} cfg_t;