diff --git a/src/melee/mp/mplib.c b/src/melee/mp/mplib.c
index f718b16c96..c435a14949 100644
--- a/src/melee/mp/mplib.c
+++ b/src/melee/mp/mplib.c
@@ -3177,18 +3177,22 @@ void mpLib_80053DA4_Floor(int line_id, Vec3* pos_out)
 
 void mpLib_80053ECC_Floor(int line_id, Vec* vec)
 {
+    int shifted;
+    int new_id;
     CollVtx* temp_r3;
 
     LINEID_CHECK(4448, line_id);
 
-    while (true) {
-        int new_id = groundCollLine[line_id].x0->prev_id0;
-        if ((new_id != -1) && (groundCollLine[new_id].flags & CollLine_Floor))
-        {
-            line_id = new_id;
-        } else {
-            break;
-        }
+    goto loop_entry;
+
+loop_start:
+    line_id = new_id;
+loop_entry:
+    shifted = line_id << 3;
+    new_id = groundCollLine[line_id].x0->prev_id0;
+    if ((new_id != -1) && (groundCollLine[new_id].flags & CollLine_Floor))
+    {
+        goto loop_start;
     }
 
     LINEID_CHECK(4453, line_id);