diff --git a/top/top.c b/top/top.c
index 572ade63..bfe57276 100644
--- a/top/top.c
+++ b/top/top.c
@@ -3392,11 +3392,11 @@ static void forest_add (const int self, const int level) {
 
    Tree_ppt[Tree_idx] = Seed_ppt[self];     // add this as root or child
    Tree_ppt[Tree_idx++]->pad_3 = level;     // borrow 1 byte, 127 levels
-#ifdef TREE_ONEPASS
-   for (i = self + 1; i < Frame_maxtask; i++) {
+#ifdef TREE_RESCANS
+   for (i = 0; i < Frame_maxtask; i++) {    // this is hardly bullet proof now,
+      if (i == self) continue;              // with 3.3 proc hidepid provisions
 #else
-   for (i = 0; i < Frame_maxtask; i++) {
-      if (i == self) continue;
+   for (i = self + 1; i < Frame_maxtask; i++) {
 #endif
       if (Seed_ppt[self]->tid == Seed_ppt[i]->tgid
       || (Seed_ppt[self]->tid == Seed_ppt[i]->ppid && Seed_ppt[i]->tid == Seed_ppt[i]->tgid))
diff --git a/top/top.h b/top/top.h
index 903a5435..d45f0038 100644
--- a/top/top.h
+++ b/top/top.h
@@ -43,7 +43,7 @@
 //#define STRINGCASENO            /* case insenstive compare/locate versions */
 //#define TERMIO_PROXY            /* true line editing, beyond native input  */
 //#define TREE_NORESET            /* sort keys do NOT force forest view OFF  */
-//#define TREE_ONEPASS            /* for speed, tolerate dangling children   */
+//#define TREE_RESCANS            /* restart scan to avoid dangling children */
 //#define USE_X_COLHDR            /* emphasize header vs. whole col, for 'x' */
 //#define VALIDATE_NLS            /* validate integrity of all 3 nls tables  */
 //#define WARN_CFG_OFF            /* warning OFF when overwriting old rcfile */