diff --git a/recipes-core/images/nmrouter-image-prodtest.bb b/recipes-core/images/nmrouter-image-prodtest.bb
index 2f74734..0bbe455 100644
--- a/recipes-core/images/nmrouter-image-prodtest.bb
+++ b/recipes-core/images/nmrouter-image-prodtest.bb
@@ -3,6 +3,7 @@ require nmrouter-image-minimal.bb
 IMAGE_INSTALL_append = " \
     iperf \
     python3 \
+    python-smbus \
     tibluetooth \
     ti-wl18xx-calibrator \
     linux-firmware-wl18xx \