diff --git a/recipes-testing/ti-calibrator-wl18xx/ti-calibrator-wl18xx/wgod-ng b/recipes-testing/ti-calibrator-wl18xx/ti-calibrator-wl18xx/wgod-ng
index 98735b4..bc1fb1b 100644
--- a/recipes-testing/ti-calibrator-wl18xx/ti-calibrator-wl18xx/wgod-ng
+++ b/recipes-testing/ti-calibrator-wl18xx/ti-calibrator-wl18xx/wgod-ng
@@ -95,7 +95,7 @@ wget_set_channel() {
 
 wget_set_power() {
     local band=$(wgod_get_band $W_CHANNEL)
-    local power=$(expr $W_POWER * 1000)
+    local power=$(expr $W_POWER \* 1000)
     local bandwidth=0
 
     if [ $W_BANDWIDTH -eq 2 ]; then