diff --git a/recipes/_path b/recipes/_path
index a09962c..6f281d8 100644
--- a/recipes/_path
+++ b/recipes/_path
@@ -1,16 +1,26 @@
 #!/bin/bash
 set +e
 
+function __addline {
+    local filename=$1
+    shift
+    local line="$@"
+
+    grep "^$line\$" $filename || echo $line >> $filename
+}
+
 function _path_low {
     PATH="$1:$PATH"
-    test -r ~/.bash_profile && echo "export PATH='$1'":'"$PATH"' >>~/.bash_profile
-    echo "export PATH='$1'":'"$PATH"' >>~/.profile
+    test -r ~/.bash_profile && __addline ~/.bash_profile "export PATH='$1'":'"$PATH"'
+    __addline ~/.profile "export PATH='$1'":'"$PATH"'
+    __addline ~/.zshenv "export PATH='$1'":'"$PATH"'
 }
 
 function _path_high {
     PATH="$PATH:$1"
-    test -r ~/.bash_profile && echo 'export PATH="$PATH"':"'$PATH'" >>~/.bash_profile
-    echo "export PATH='$1'":'"$PATH"' >>~/.profile
+    test -r ~/.bash_profile && __addline ~/.bash_profile 'export PATH="$PATH"':"'$PATH'"
+    __addline ~/.profile "export PATH='$1'":'"$PATH"'
+    __addline ~/.zshenv "export PATH='$1'":'"$PATH"'
 }
 
 function _path {