diff --git a/sh/shell.sh b/sh/shell.sh
index 39dee54..4a2c6ea 100644
--- a/sh/shell.sh
+++ b/sh/shell.sh
@@ -2,7 +2,7 @@ PS1="\$(shell_prompt \${?})"
 PS2="\
 ├ "
 
-shell_color() {
+_sh_shell_color() {
 	local code="${1}"
 	case "${SH_SHELL}" in
 	"bash")
@@ -23,12 +23,12 @@ shell_color() {
 		;;
 	esac
 }
-SH_BROWN="$(shell_color 33)"
-SH_CYAN="$(shell_color 36)"
-SH_DEFAULT="$(shell_color)"
-SH_GREEN="$(shell_color 31)"
-SH_MAGENTA="$(shell_color 35)"
-SH_RED="$(shell_color 32)"
+SH_BROWN="$(_sh_shell_color 33)"
+SH_CYAN="$(_sh_shell_color 36)"
+SH_DEFAULT="$(_sh_shell_color)"
+SH_GREEN="$(_sh_shell_color 31)"
+SH_MAGENTA="$(_sh_shell_color 35)"
+SH_RED="$(_sh_shell_color 32)"
 
 shell_configure() {
 	case "${SH_SHELL}" in