diff --git a/sh/tmuxcomplete b/sh/tmuxcomplete
index c1dbc3f..742e097 100644
--- a/sh/tmuxcomplete
+++ b/sh/tmuxcomplete
@@ -17,7 +17,7 @@ fi
 MODE="$1" PATTERN="$2" LISTARGS="$3" CAPTUREARGS="$4"
 
 capturepane() {
-    if [ tmux capture-pane -p &> /dev/null ]; then
+    if tmux capture-pane -p >/dev/null 2>&1; then
         # tmux capture-pane understands -p -> use it
         xargs -n1 tmux capture-pane $1 -p -t
     else