diff --git a/libexec/rbenv-init b/libexec/rbenv-init
index 7fb7ccd1..cd327fad 100755
--- a/libexec/rbenv-init
+++ b/libexec/rbenv-init
@@ -70,7 +70,7 @@ if [ -z "$print" ]; then
     echo
     case "$shell" in
     fish )
-      echo 'status --is-interactive; and source (rbenv init -|psub)'
+      echo 'status --is-interactive; and rbenv init - | source'
       ;;
     * )
       echo 'eval "$(rbenv init -)"'
@@ -114,7 +114,7 @@ function rbenv
 
   switch "\$command"
   case ${commands[*]}
-    source (rbenv "sh-\$command" \$argv|psub)
+    rbenv "sh-\$command" \$argv|source
   case '*'
     command rbenv "\$command" \$argv
   end
diff --git a/test/init.bats b/test/init.bats
index 6ea662b5..d780cc58 100755
--- a/test/init.bats
+++ b/test/init.bats
@@ -54,7 +54,7 @@ OUT
 @test "fish instructions" {
   run rbenv-init fish
   assert [ "$status" -eq 1 ]
-  assert_line 'status --is-interactive; and source (rbenv init -|psub)'
+  assert_line 'status --is-interactive; and rbenv init - | source'
 }
 
 @test "option to skip rehash" {