diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c
index 0e4942578b..b0ca61a8d6 100644
--- a/src/backend/utils/init/miscinit.c
+++ b/src/backend/utils/init/miscinit.c
@@ -107,9 +107,8 @@ InitPostmasterChild(void)
 
 	/*
 	 * Set reference point for stack-depth checking.  This might seem
-	 * redundant in !EXEC_BACKEND builds; but it's not because the postmaster
-	 * launches its children from signal handlers, so we might be running on
-	 * an alternative stack.
+	 * redundant in !EXEC_BACKEND builds, but it's better to keep the depth
+	 * logic the same with and without that build option.
 	 */
 	(void) set_stack_base();