diff --git a/src/backend/commands/variable.c b/src/backend/commands/variable.c
index f92d72b5b7e..aee6bbd4f44 100644
--- a/src/backend/commands/variable.c
+++ b/src/backend/commands/variable.c
@@ -479,7 +479,7 @@ show_log_timezone(void)
  */
 
 /*
- * GUC check_hook for assign_timezone_abbreviations
+ * GUC check_hook for timezone_abbreviations
  */
 bool
 check_timezone_abbreviations(char **newval, void **extra, GucSource source)
@@ -511,7 +511,7 @@ check_timezone_abbreviations(char **newval, void **extra, GucSource source)
 }
 
 /*
- * GUC assign_hook for assign_timezone_abbreviations
+ * GUC assign_hook for timezone_abbreviations
  */
 void
 assign_timezone_abbreviations(const char *newval, void *extra)