diff --git a/bin/fzf-tmux b/bin/fzf-tmux
index 6b833db..0eb2e37 100755
--- a/bin/fzf-tmux
+++ b/bin/fzf-tmux
@@ -99,16 +99,17 @@ fail() {
   exit 1
 }
 fzf=$(which fzf 2> /dev/null) || fail "fzf executable not found"
+envs="FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
 
 mkfifo $fifo2
 mkfifo $fifo3
 if [ -t 0 ]; then
   tmux set-window-option -q synchronize-panes off \;\
-    split-window $opt 'sh -c "'$fzf' '"$fzf_args"' > '$fifo2'; echo \$? > '$fifo3' '"$close"'"' $swap
+    split-window $opt "$envs"' sh -c "'$fzf' '"$fzf_args"' > '$fifo2'; echo \$? > '$fifo3' '"$close"'"' $swap
 else
   mkfifo $fifo1
   tmux set-window-option -q synchronize-panes off \;\
-    split-window $opt 'sh -c "'$fzf' '"$fzf_args"' < '$fifo1' > '$fifo2'; echo \$? > '$fifo3' '"$close"'"' $swap
+    split-window $opt "$envs"' sh -c "'$fzf' '"$fzf_args"' < '$fifo1' > '$fifo2'; echo \$? > '$fifo3' '"$close"'"' $swap
   cat <&0 > $fifo1 &
 fi
 cat $fifo2