diff --git a/Dockerfile b/Dockerfile
index 312f40e..58e8315 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -44,7 +44,7 @@ ARG OVERLAY_VERSION
 ARG OVERLAY_ARCH="amd64"
 
 # environment variables
-ENV PS1="$(whoami)@$(hostname):$(pwd)# " \
+ENV PS1="$(whoami)@$(hostname):$(pwd)\\$ " \
 HOME="/root" \
 TERM="xterm"
 
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 9b1bc15..fa9362c 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -46,7 +46,7 @@ ARG OVERLAY_VERSION
 ARG OVERLAY_ARCH="aarch64"
 
 # environment variables
-ENV PS1="$(whoami)@$(hostname):$(pwd)# " \
+ENV PS1="$(whoami)@$(hostname):$(pwd)\\$ " \
 HOME="/root" \
 TERM="xterm"
 
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index a33b360..90d532b 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -46,7 +46,7 @@ ARG OVERLAY_VERSION
 ARG OVERLAY_ARCH="armhf"
 
 # environment variables
-ENV PS1="$(whoami)@$(hostname):$(pwd)# " \
+ENV PS1="$(whoami)@$(hostname):$(pwd)\\$ " \
 HOME="/root" \
 TERM="xterm"