diff --git a/novnc/Dockerfile b/novnc/Dockerfile
index d2b9b3e..78371b4 100644
--- a/novnc/Dockerfile
+++ b/novnc/Dockerfile
@@ -5,7 +5,7 @@ USER root
 # Install ssh client
 RUN apk add --no-cache \
     openssh-client \
-    && <<- '01-init' cat >>/app/init.d/01-init.sh
+    && <<-'01-init' cat >>/app/init.d/01-init.sh
 
 # Check for client variables
 if ! [ ${MYVNC_VNCCLIENT_HOST} ]