diff --git a/contrib/docker/entrypoint.sh b/contrib/docker/entrypoint.sh
index 1a8f14d7..42252a6e 100755
--- a/contrib/docker/entrypoint.sh
+++ b/contrib/docker/entrypoint.sh
@@ -62,6 +62,13 @@ if [ "${ONEDRIVE_DOWNLOADONLY:=0}" == "1" ]; then
    ARGS=(--download-only ${ARGS[@]})
 fi
 
+# Tell client to sync in upload-only mode based on environment variable
+if [ "${ONEDRIVE_UPLOADONLY:=0}" == "1" ]; then
+   echo "# We are synchronizing in upload-only mode"
+   echo "# Adding --upload-only"
+   ARGS=(--upload-only ${ARGS[@]})
+fi
+
 # Tell client to logout based on environment variable
 if [ "${ONEDRIVE_LOGOUT:=0}" == "1" ]; then
    echo "# We are logging out"
diff --git a/docs/Docker.md b/docs/Docker.md
index 51e3688b..7307c64e 100644
--- a/docs/Docker.md
+++ b/docs/Docker.md
@@ -205,6 +205,7 @@ docker run $firstRun --restart unless-stopped --name onedrive -v onedrive_conf:/
 | <B>ONEDRIVE_DEBUG_HTTPS</B> | Controls "--debug-https" switch on onedrive sync. Default is 0 | 1 |
 | <B>ONEDRIVE_RESYNC</B> | Controls "--resync" switch on onedrive sync. Default is 0 | 1 |
 | <B>ONEDRIVE_DOWNLOADONLY</B> | Controls "--download-only" switch on onedrive sync. Default is 0 | 1 |
+| <B>ONEDRIVE_UPLOADONLY</B> | Controls "--upload-only" switch on onedrive sync. Default is 0 | 1 |
 | <B>ONEDRIVE_LOGOUT</B> | Controls "--logout" switch. Default is 0 | 1 |
 | <B>ONEDRIVE_REAUTH</B> | Controls "--reauth" switch. Default is 0 | 1 |
 | <B>ONEDRIVE_AUTHFILES</B> | Controls "--auth-files" option. Default is "" | "authUrl:responseUrl" |