diff --git a/fuzzers/005-tilegrid/iob/generate.sh b/fuzzers/005-tilegrid/iob/generate.sh
index 7d49e204..e66d1317 100644
--- a/fuzzers/005-tilegrid/iob/generate.sh
+++ b/fuzzers/005-tilegrid/iob/generate.sh
@@ -7,7 +7,7 @@ source ${XRAY_GENHEADER}
 
 # Some projects have hard coded top.v, others are generated
 if [ -f $FUZDIR/top.py ] ; then
-    python3 $FUZDIR/top.py >top.v
+    XRAY_DATABASE_ROOT=$FUZDIR/../build/basicdb python3 $FUZDIR/top.py >top.v
 fi
 
 vivado -mode batch -source $FUZDIR/generate.tcl