diff --git a/bin/compose-core b/bin/compose-core
index f7f69b4..2b35b05 100755
--- a/bin/compose-core
+++ b/bin/compose-core
@@ -3397,7 +3397,7 @@ _setup_state_dir() {
 
 
 get_docker_compose_help_msg() {
-    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$1"; cat "$(which docker-compose)" | md5_compat)" \
+    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$({ p0 "$1"; cat "$(which docker-compose)"; } | md5_compat)" \
           docker_compose_help_msg
     if [ -e "$cache_file" ]; then
         cat "$cache_file" &&
@@ -3411,7 +3411,7 @@ get_docker_compose_help_msg() {
 
 
 get_docker_compose_usage() {
-    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$1"; cat "$(which docker-compose)" | md5_compat)" \
+    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$({ p0 "$1"; cat "$(which docker-compose)"; } | md5_compat)" \
           docker_compose_help_msg
     if [ -e "$cache_file" ]; then
         cat "$cache_file" &&
@@ -3429,7 +3429,7 @@ get_docker_compose_usage() {
 
 
 get_docker_compose_opts_help() {
-    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$1"; cat "$(which docker-compose)" | md5_compat)" \
+    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$({ p0 "$1"; cat "$(which docker-compose)"; } | md5_compat)" \
           docker_compose_help_msg
     if [ -e "$cache_file" ]; then
         cat "$cache_file" &&
@@ -3448,7 +3448,7 @@ get_docker_compose_opts_help() {
 
 
 get_docker_compose_commands_help() {
-    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$1"; cat "$(which docker-compose)" | md5_compat)" \
+    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$({ p0 "$1"; cat "$(which docker-compose)"; } | md5_compat)" \
           docker_compose_help_msg
     if [ -e "$cache_file" ]; then
         cat "$cache_file" &&
@@ -3467,7 +3467,7 @@ get_docker_compose_commands_help() {
 
 
 get_docker_compose_opts_list() {
-    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$1"; cat "$(which docker-compose)" | md5_compat)" \
+    local action="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$({ p0 "$1"; cat "$(which docker-compose)"; } | md5_compat)" \
           docker_compose_help_msg
     if [ -e "$cache_file" ]; then
         cat "$cache_file" &&