diff --git a/themes/base.theme.bash b/themes/base.theme.bash
index 58efe11..503fc57 100644
--- a/themes/base.theme.bash
+++ b/themes/base.theme.bash
@@ -27,6 +27,9 @@
 RBENV_THEME_PROMPT_PREFIX=' |'
 RBENV_THEME_PROMPT_SUFFIX='|'
 
+RBFU_THEME_PROMPT_PREFIX=' |'
+RBFU_THEME_PROMPT_SUFFIX='|'
+
 function scm {
   if [[ -d .git ]]; then SCM=$SCM_GIT
   elif [[ -n "$(git symbolic-ref HEAD 2> /dev/null)" ]]; then SCM=$SCM_GIT
@@ -123,6 +126,16 @@
   fi
 }
 
+function rbfu_version_prompt {
+  if [[ $RBFU_RUBY_VERSION ]]; then
+    echo -e "${RBFU_THEME_PROMPT_PREFIX}${RBFU_RUBY_VERSION}${RBFU_THEME_PROMPT_SUFFIX}"
+  fi
+}
+
+function ruby_version_prompt {
+  echo -e "$(rbfu_version_prompt)$(rbenv_version_prompt)$(rvm_version_prompt)"
+}
+
 function virtualenv_prompt {
   if which virtualenv &> /dev/null; then
     virtualenv=$([ ! -z "$VIRTUAL_ENV" ] && echo "`basename $VIRTUAL_ENV`") || return
diff --git a/themes/bobby/bobby.theme.bash b/themes/bobby/bobby.theme.bash
index cb51fb8..4d15010 100644
--- a/themes/bobby/bobby.theme.bash
+++ b/themes/bobby/bobby.theme.bash
@@ -13,8 +13,8 @@
 RVM_THEME_PROMPT_SUFFIX="|"
 
 function prompt_command() {
-    #PS1="${bold_cyan}$(scm_char)${green}$(scm_prompt_info)${purple}$(rvm_version_prompt) ${yellow}\h ${reset_color}in ${green}\w ${reset_color}\n${green}→${reset_color} "
-    PS1="\n${yellow}$(rvm_version_prompt) ${purple}\h ${reset_color}in ${green}\w\n${bold_cyan}$(scm_char)${green}$(scm_prompt_info) ${green}→${reset_color} "
+    #PS1="${bold_cyan}$(scm_char)${green}$(scm_prompt_info)${purple}$(ruby_version_prompt) ${yellow}\h ${reset_color}in ${green}\w ${reset_color}\n${green}→${reset_color} "
+    PS1="\n${yellow}$(ruby_version_prompt) ${purple}\h ${reset_color}in ${green}\w\n${bold_cyan}$(scm_char)${green}$(scm_prompt_info) ${green}→${reset_color} "
 }
 
 PROMPT_COMMAND=prompt_command;
diff --git a/themes/doubletime/doubletime.theme.bash b/themes/doubletime/doubletime.theme.bash
index c3bf453..c79ab5e 100644
--- a/themes/doubletime/doubletime.theme.bash
+++ b/themes/doubletime/doubletime.theme.bash
@@ -50,7 +50,7 @@
       clock=$THEME_PROMPT_CLOCK_FORMAT
   fi
   PS1="
-$clock $(scm_char) [$THEME_PROMPT_HOST_COLOR\u@${THEME_PROMPT_HOST}$reset_color] $(virtualenv_prompt)$(rvm_version_prompt)\w
+$clock $(scm_char) [$THEME_PROMPT_HOST_COLOR\u@${THEME_PROMPT_HOST}$reset_color] $(virtualenv_prompt)$(ruby_version_prompt)\w
 $(doubletime_scm_prompt)$reset_color $ "
   PS2='> '
   PS4='+ '
diff --git a/themes/envy/envy.theme.bash b/themes/envy/envy.theme.bash
index 6787434..d2f6a00 100644
--- a/themes/envy/envy.theme.bash
+++ b/themes/envy/envy.theme.bash
@@ -10,7 +10,7 @@
 GIT_THEME_PROMPT_SUFFIX="${green}|"
 
 function prompt_command() {
-    PS1="\n${yellow}$(rbenv_version_prompt)$(rvm_version_prompt) ${purple}\h ${reset_color}in ${green}\w\n${bold_cyan}$(scm_char)${green}$(scm_prompt_info) ${green}→${reset_color} "
+    PS1="\n${yellow}$(ruby_version_prompt) ${purple}\h ${reset_color}in ${green}\w\n${bold_cyan}$(scm_char)${green}$(scm_prompt_info) ${green}→${reset_color} "
 }
 
 PROMPT_COMMAND=prompt_command;
diff --git a/themes/hawaii50/hawaii50.theme.bash b/themes/hawaii50/hawaii50.theme.bash
index 93cef46..0b1fe3b 100644
--- a/themes/hawaii50/hawaii50.theme.bash
+++ b/themes/hawaii50/hawaii50.theme.bash
@@ -98,7 +98,7 @@
 # Displays virtual info prompt (virtualenv/rvm)
 function virtual_prompt_info() {
     local virtual_env_info=$(virtualenv_prompt)
-    local rvm_info=$(rvm_version_prompt)
+    local rvm_info=$(ruby_version_prompt)
     local virtual_prompt=""
 
     local prefix=${VIRTUAL_THEME_PROMPT_PREFIX}
diff --git a/themes/pete/pete.theme.bash b/themes/pete/pete.theme.bash
index 7b6702c..cda451e 100644
--- a/themes/pete/pete.theme.bash
+++ b/themes/pete/pete.theme.bash
@@ -5,7 +5,7 @@
   history -a
   history -c
   history -r
-  PS1="(\t) $(scm_char) [$blue\u$reset_color@$green\H$reset_color] $yellow\w${reset_color}$(scm_prompt_info)$(rvm_version_prompt) $reset_color "
+  PS1="(\t) $(scm_char) [$blue\u$reset_color@$green\H$reset_color] $yellow\w${reset_color}$(scm_prompt_info)$(ruby_version_prompt) $reset_color "
   PS2='> '
   PS4='+ '
 }
diff --git a/themes/rainbowbrite/rainbowbrite.theme.bash b/themes/rainbowbrite/rainbowbrite.theme.bash
index e4424bb..1179230 100644
--- a/themes/rainbowbrite/rainbowbrite.theme.bash
+++ b/themes/rainbowbrite/rainbowbrite.theme.bash
@@ -11,9 +11,9 @@
   history -c
   history -r
   # displays user@server in purple
-  # PS1="$red$(scm_char) $purple\u@\h$reset_color:$blue\w$yellow$(scm_prompt_info)$(rvm_version_prompt) $black\$$reset_color "
+  # PS1="$red$(scm_char) $purple\u@\h$reset_color:$blue\w$yellow$(scm_prompt_info)$(ruby_version_prompt) $black\$$reset_color "
   # no user@server
-  PS1="$red$(scm_char) $blue\w$yellow$(scm_prompt_info)$(rvm_version_prompt) $black\$$reset_color "
+  PS1="$red$(scm_char) $blue\w$yellow$(scm_prompt_info)$(ruby_version_prompt) $black\$$reset_color "
   PS2='> '
   PS4='+ '
 }
diff --git a/themes/tylenol/tylenol.theme.bash b/themes/tylenol/tylenol.theme.bash
index c915f56..d8b63ef 100644
--- a/themes/tylenol/tylenol.theme.bash
+++ b/themes/tylenol/tylenol.theme.bash
@@ -14,7 +14,7 @@
 VIRTUALENV_THEME_PROMPT_SUFFIX='|'
 
 function prompt_command() {
-    PS1="\n${green}$(virtualenv_prompt)${red}$(rvm_version_prompt) ${reset_color}\h ${orange}in ${reset_color}\w\n${yellow}$(scm_char)$(scm_prompt_info) ${yellow}→${white} "
+    PS1="\n${green}$(virtualenv_prompt)${red}$(ruby_version_prompt) ${reset_color}\h ${orange}in ${reset_color}\w\n${yellow}$(scm_char)$(scm_prompt_info) ${yellow}→${white} "
 }
 
 PROMPT_COMMAND=prompt_command;