diff --git a/Dockerfile b/Dockerfile
index 8e6d409fe..a10b103f4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,10 +5,10 @@ FROM golang:1.17.5-alpine3.15
 # Build arguments.
 #
 # Override on the docker command line with
-#   --build-arg USE_TSL_SOCKETS=false
+#   --build-arg USE_TLS_SOCKETS=false
 #   --build-arg ENABLE_HOST_CHECK=false
 #
-ARG USE_TSL_SOCKETS=true
+ARG USE_TLS_SOCKETS=true
 ARG ENABLE_HOST_CHECK=true
 
 
@@ -46,7 +46,7 @@ RUN ln -s `pwd`/apprtc/src/collider/collidermain $GOPATH/src \
     && go install collidermain
 
 # Add Collider executable to the start.sh bash script.
-RUN echo -e "$GOPATH/bin/collidermain -port=8089 -tls=$USE_TSL_SOCKETS -room-server=http://localhost &\n" >> /go/start.sh
+RUN echo -e "$GOPATH/bin/collidermain -port=8089 -tls=$USE_TLS_SOCKETS -room-server=http://localhost &\n" >> /go/start.sh
 
 ENV STUNNEL_VERSION 5.60
 
@@ -82,7 +82,7 @@ CMD /go/start.sh
 ## Instructions (Tested on Debian 11 only):
 # - Download the Dockerfile from the AppRTC repo and put it in a folder, e.g. 'apprtc'
 # - Build the Dockerfile into an image: 'sudo docker build apprtc/ --tag apprtc:latest'
-#   If you want to disable TLS (not recommended) add '--build-arg USE_TSL_SOCKETS=false' to that command.
+#   If you want to disable TLS (not recommended) add '--build-arg USE_TLS_SOCKETS=false' to that command.
 #   If you want to allow connection from any remote client, add '--build-arg ENABLE_HOST_CHECK=false'.
 # - Run: 'sudo docker run -p 443:443 -p 8080:8080 -p 8089:8089 --rm -ti apprtc:latest'
 #   The container will now run in interactive mode and output logging. If you do not want this, omit the '-ti' argument.