diff --git a/docker/build.sh b/docker/build.sh
index 5888516d481..1de65b88d01 100755
--- a/docker/build.sh
+++ b/docker/build.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
-# shellcheck disable=SC2154
+# shellcheck disable=SC2154,SC2035,SC2046
 
-OTX_VERSION=$(python -c 'import otx; print(otx.__version__)')
+OTX_VERSION ? =$(python -c 'import otx; print(otx.__version__)')
 THIS_DIR=$(dirname "$0")
 
 echo "Build OTX ${OTX_VERSION} CUDA Docker image..."