diff --git a/plugins/sprunge/sprunge.fish b/plugins/sprunge/sprunge.fish
index 0906bb3..bc4b44c 100644
--- a/plugins/sprunge/sprunge.fish
+++ b/plugins/sprunge/sprunge.fish
@@ -4,7 +4,7 @@
 # Based on oh-my-zsh's sprunge plugin
 
 function sprunge
-  if isatty stdin
+  if isatty
     if [ (count $argv) -gt 0 ]
       if [ -f $argv ]
         cat $argv