diff --git a/lib/available.fish b/lib/available.fish
deleted file mode 100644
index b6cfa14..0000000
--- a/lib/available.fish
+++ /dev/null
@@ -1,9 +0,0 @@
-# SYNOPSIS
-#   available [name]
-#
-# OVERVIEW
-#   Check if a function or program is available.
-
-function available -a name -d "Check if a function or program is available."
-  type "$name" ^/dev/null >&2
-end
diff --git a/pkg/omf/functions/compat/available.fish b/pkg/omf/functions/compat/available.fish
new file mode 100644
index 0000000..18dc39a
--- /dev/null
+++ b/pkg/omf/functions/compat/available.fish
@@ -0,0 +1,10 @@
+function available
+  echo (status -t)[5] | read -la caller
+  printf 'warning: function %savailable%s is deprecated and will be removed soon.\n' \
+  (set_color -u) (set_color normal)
+
+  contains input $caller
+    or echo $caller
+
+  type -q $argv
+end