diff --git a/.bashrc b/.bashrc
index 853eca4..6abd520 100644
--- a/.bashrc
+++ b/.bashrc
@@ -215,14 +215,7 @@ cat() {
 
 # directory for project
 project_dirs() {
-  local dirs="__path__:$HOME/workspace/__path__:$HOME/__path__:$GEM_HOME/gems/__gempath__:$GEM_HOME/gems/__path__:$GEM_HOME/bundler/gems/__gempath__:$GEM_HOME/bundler/gems/__path__"
-  if [[ -n "$1" ]]; then
-    dirs="${dirs//__gempath__/__path__-*}"
-    echo "${dirs//__path__/$1}"
-  else
-    dirs="${dirs//\/__gempath__/}"
-    echo "${dirs//\/__path__/}"
-  fi
+  echo "${1:-.}:${HOME}/workspace/${1}:${HOME}/${1}"
 }
 
 d() {