diff --git a/synthDC/Makefile b/synthDC/Makefile
index 193153ca..3de66665 100755
--- a/synthDC/Makefile
+++ b/synthDC/Makefile
@@ -15,6 +15,7 @@ export MAXCORES ?= 4
 # MAXOPT turns on flattening, boundary optimization, and retiming
 # The output netlist is hard to interpret, but significantly better PPA
 export MAXOPT ?= 0
+export DRIVE ?= FLOP
 
 time := $(shell date +%F-%H-%M)
 hash := $(shell git rev-parse --short HEAD)