diff --git a/plugins/node/node.load b/plugins/node/node.load
index 32af336..a72dec8 100644
--- a/plugins/node/node.load
+++ b/plugins/node/node.load
@@ -1,6 +1,4 @@
 ### Main program
-if test -d /usr/local/share/npm/bin
-  set PATH /usr/local/share/npm/bin $PATH
-end
+_append_path /usr/local/share/npm/bin
 
 set PATH ./node_modules/.bin $PATH
diff --git a/plugins/plenv/plenv.load b/plugins/plenv/plenv.load
index d4c60c7..107b6bf 100644
--- a/plugins/plenv/plenv.load
+++ b/plugins/plenv/plenv.load
@@ -1,7 +1,2 @@
-if test -d $HOME/.plenv/bin
-  set PATH $HOME/.plenv/bin $PATH
-end
-
-if test -d $HOME/.plenv/shims
-  set PATH $HOME/.plenv/shims $PATH
-end
+_append_path $HOME/.plenv/bin
+_append_path $HOME/.plenv/shims
diff --git a/plugins/pyenv/pyenv.load b/plugins/pyenv/pyenv.load
index 00176fa..5d771f6 100644
--- a/plugins/pyenv/pyenv.load
+++ b/plugins/pyenv/pyenv.load
@@ -1,15 +1,7 @@
 if test -n "$PYENV_ROOT"
-  if test -d $PYENV_ROOT/bin
-    set PATH $PYENV_ROOT/bin $PATH
-  end
-  if test -d $PYENV_ROOT/shims
-    set PATH $PYENV_ROOT/shims $PATH
-  end
+  _append_path $PYENV_ROOT/bin
+  _append_path $PYENV_ROOT/shims
 else
-  if test -d $HOME/.pyenv/bin
-    set PATH $HOME/.pyenv/bin $PATH
-  end
-  if test -d $HOME/.pyenv/shims
-    set PATH $HOME/.pyenv/shims $PATH
-  end
+  _append_path $HOME/.pyenv/bin
+  _append_path $HOME/.pyenv/shims
 end
diff --git a/plugins/python/python.load b/plugins/python/python.load
index 7f2bbc2..d0eb8fe 100644
--- a/plugins/python/python.load
+++ b/plugins/python/python.load
@@ -1,4 +1,2 @@
-if test -d /usr/local/share/python
-  set PATH /usr/local/share/python $PATH
-end
+_append_path /usr/local/share/python
 
diff --git a/plugins/rbenv/rbenv.load b/plugins/rbenv/rbenv.load
index de49047..7becc30 100644
--- a/plugins/rbenv/rbenv.load
+++ b/plugins/rbenv/rbenv.load
@@ -1,17 +1,7 @@
 if test -n "$RBENV_ROOT"
-  if test -d $RBENV_ROOT/bin
-    set PATH $RBENV_ROOT/bin $PATH
-  end
-
-  if test -d $RBENV_ROOT/shims
-    set PATH $RBENV_ROOT/shims $PATH
-  end
+  _append_path $RBENV_ROOT/bin
+  _append_path $RBENV_ROOT/shims
 else
-  if test -d $HOME/.rbenv/bin
-    set PATH $HOME/.rbenv/bin $PATH
-  end
-
-  if test -d $HOME/.rbenv/shims
-    set PATH $HOME/.rbenv/shims $PATH
-  end
+  _append_path $HOME/.rbenv/bin
+  _append_path $HOME/.rbenv/shims
 end