diff --git a/usr.bin/indent/parse.c b/usr.bin/indent/parse.c
index f3a4b44cb43..eeeb30acc22 100644
--- a/usr.bin/indent/parse.c
+++ b/usr.bin/indent/parse.c
@@ -310,7 +310,7 @@ reduce()
 	case whilestmt:	/* while (...) on top */
 	    if (ps.p_stack[ps.tos - 1] == dohead) {
 		/* it is termination of a do while */
-		ps.p_stack[--ps.tos] = stmt;
+		ps.tos -= 2;
 		break;
 	    }
 	    else