diff --git a/client/src/docker/docker.bash b/client/src/docker/docker.bash
index aa32242..f55eb04 100755
--- a/client/src/docker/docker.bash
+++ b/client/src/docker/docker.bash
@@ -55,7 +55,7 @@ function main()
   Environment (all platforms):
 
     gen         \e[34;3mGenerate docker-finance environment\e[0m
-    edit        \e[34;3mEdit existing client-side configuration file [arg]\e[0m
+    edit        \e[34;3mEdit existing client-side configurations\e[0m
 
   All platforms:
 
diff --git a/client/src/docker/lib/internal/lib_docker.bash b/client/src/docker/lib/internal/lib_docker.bash
index db0a595..683ed42 100644
--- a/client/src/docker/lib/internal/lib_docker.bash
+++ b/client/src/docker/lib/internal/lib_docker.bash
@@ -233,7 +233,7 @@ function lib_docker::__edit()
 
   Configuration type:
 
-    type${global_arg_delim_2}<env|{shell|superscript}>
+    type${global_arg_delim_2}<env|{shell|superscript}|{build|dockerfile}>
 
 \e[32mExamples:\e[0m
 
@@ -243,8 +243,11 @@ function lib_docker::__edit()
   \e[37;2m# Edit client/container shell (superscript) \e[0m
   $ $global_usage type${global_arg_delim_2}shell
 
-  \e[37;2m# Edit client/container shell (w/ alternate wording) and environment variables\e[0m
-  $ $global_usage type${global_arg_delim_2}superscript${global_arg_delim_3}env
+  \e[37;2m# Edit client's custom Dockerfile (appended to final Dockerfile) \e[0m
+  $ $global_usage type${global_arg_delim_2}build
+
+  \e[37;2m# Previous commands with alternate wordings\e[0m
+  $ $global_usage type${global_arg_delim_2}superscript${global_arg_delim_3}dockerfile${global_arg_delim_3}env
 "
 
   if [ $# -ne 1 ]; then
@@ -277,7 +280,7 @@ function lib_docker::__edit()
     read -ra _read <<<"$_arg_type"
 
     for _type in "${_read[@]}"; do
-      if [[ ! "$_type" =~ ^env$|^shell$|^superscript$ ]]; then
+      if [[ ! "$_type" =~ ^env$|^shell$|^superscript$|^build$|^dockerfile$ ]]; then
         lib_utils::die_usage "$_usage"
       fi
     done
@@ -312,6 +315,11 @@ function lib_docker::__edit()
 
         _paths+=("$global_shell_file")
         ;;
+      build | dockerfile)
+        [ -z "$global_custom_dockerfile" ] && lib_utils::die_fatal
+
+        _paths+=("$global_custom_dockerfile")
+        ;;
     esac
   done