diff --git a/themes/sirup/sirup.theme.bash b/themes/sirup/sirup.theme.bash
index 5066587..146cc35 100644
--- a/themes/sirup/sirup.theme.bash
+++ b/themes/sirup/sirup.theme.bash
@@ -13,6 +13,10 @@
 
   [ "$full" != "" ] && echo "$full"
 }
+ 
+function prompt_command() {
+    # Check http://github.com/Sirupsen/dotfiles for screenshot
+    PS1="$blue\W/$bold_blue$(rvm_version_prompt)$bold_green$(__git_ps1 " (%s)") ${normal}$ "
+}
 
-# Check http://github.com/Sirupsen/dotfiles for screenshot
-PS1='\[$blue\]\W/\[$bold_blue\]$(rvm_version_prompt)\[$bold_green\]$(__git_ps1 " (%s)") \[${normal}\]$ '
+PROMPT_COMMAND=prompt_command;