Add precheck env var
diff --git a/envsetup b/envsetup
index f9abd01..024480d 100644
--- a/envsetup
+++ b/envsetup
@@ -8,6 +8,9 @@
 export GCC_PATH=/opt/riscv32imc/bin/
 export PDK_PATH=/home/harrison/workspace/sky130/sky130A/
 
+# Precheck
+export PRECHECK_ROOT=/home/harrison/workspace/precheck/
+
 # Hack for mpw-3
 export OPENLANE_TAG=master