diff --git a/Ghidra/Features/BSim/make-postgres.sh b/Ghidra/Features/BSim/make-postgres.sh
index 682f05c1e5..9bdf7898b4 100755
--- a/Ghidra/Features/BSim/make-postgres.sh
+++ b/Ghidra/Features/BSim/make-postgres.sh
@@ -62,7 +62,7 @@ if [ ! -f "${POSTGRES_GZ_PATH}" ]; then
 fi
 
 OS=`uname -s`
-ARCH=`arch`
+ARCH=`uname -m`
 
 cd ${DIR}