diff --git a/fuzzers/057-pip-bi/generate.tcl b/fuzzers/057-pip-bi/generate.tcl
index 10dbdd0e..84dd588f 100644
--- a/fuzzers/057-pip-bi/generate.tcl
+++ b/fuzzers/057-pip-bi/generate.tcl
@@ -75,8 +75,6 @@ for {set idx 0} {$idx < [llength $todo_lines]} {incr idx} {
         set_property is_route_fixed 0 $mynet
         set_property is_bel_fixed 0 $mylut
         set_property is_loc_fixed 1 $mylut
-        set_property is_bel_fixed 0 $myff
-        set_property is_loc_fixed 1 $myff
         route_design -unroute -nets $mynet
 
         # sometimes it gets stuck in specific src -> dst locations