diff --git a/build.sh b/build.sh
index b0eb7c2..a14cdd2 100755
--- a/build.sh
+++ b/build.sh
@@ -1,7 +1,7 @@
 set -e
 
 usage() {
-    echo "usage: $0 [variants] [--evmy] [--cache] [--jesd] [--test caseid] " 1>&2
+    echo "usage: $0 [variants] [--evmy] [--cache] [--cpri/--ecpri/--jesd] [--test caseid] " 1>&2
     msg=${1:-}
     if [ ! -z "${msg}" ]; then
         echo "error:$1"
@@ -26,6 +26,7 @@ while [[ "$#" > 0 ]]; do
         --evmyt) board_option="EVMYT"; shift;; 
 
         --cpri) fronthaul_option="cpri"; shift;;  
+        --ecpri) fronthaul_option="ecpri"; shift;;  
         --jesd) fronthaul_option="jesd"; shift;;   
 
         --test) test_option="yes";