diff --git a/Dockerfile b/Dockerfile
index d48721d..b378eb1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -73,6 +73,9 @@ RUN \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/*
 
+ARG ZEPHYR_SDK_VERSION
+ENV ZEPHYR_SDK_VERSION=${ZEPHYR_SDK_VERSION}
+
 ENV DEBIAN_FRONTEND=
 
 #------------------------------------------------------------------------------