diff --git a/bin/fzf-tmux b/bin/fzf-tmux
index ab1c52e..290ce87 100755
--- a/bin/fzf-tmux
+++ b/bin/fzf-tmux
@@ -130,7 +130,7 @@ while [[ $# -gt 0 ]]; do
   [[ -n "$skip" ]] && args+=("$arg")
 done
 
-if [[ -z "$TMUX" || "$opt" =~ ^-h && "$columns" -le 40 || ! "$opt" =~ ^-h && "$lines" -le 15 ]]; then
+if [[ -z "$TMUX" ]]; then
   "$fzf" "${args[@]}"
   exit $?
 fi
@@ -222,14 +222,14 @@ if [[ -n "$term" ]] || [[ -t 0 ]]; then
   TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
     set-window-option remain-on-exit off \;\
     split-window $opt "${tmux_args[@]}" "$envs bash -c 'cd $(printf %q "$PWD"); exec -a fzf bash $argsf'" $swap \
-    > /dev/null 2>&1
+    > /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
 else
   mkfifo $fifo1
   cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
   TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
     set-window-option remain-on-exit off \;\
     split-window $opt "${tmux_args[@]}" "$envs bash -c 'exec -a fzf bash $argsf'" $swap \
-    > /dev/null 2>&1
+    > /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
   cat <&0 > $fifo1 &
 fi
 cat $fifo2
diff --git a/shell/completion.bash b/shell/completion.bash
index 377afe5..2aec1d6 100644
--- a/shell/completion.bash
+++ b/shell/completion.bash
@@ -37,7 +37,7 @@ bind '"\e[0n": redraw-current-line'
 __fzf_comprun() {
   if [ "$(type -t _fzf_comprun 2>&1)" = function ]; then
     _fzf_comprun "$@"
-  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
     shift
     fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- "$@"
   else
diff --git a/shell/completion.zsh b/shell/completion.zsh
index e791b3a..4c7922e 100644
--- a/shell/completion.zsh
+++ b/shell/completion.zsh
@@ -99,7 +99,7 @@ fi
 __fzf_comprun() {
   if [[ "$(type _fzf_comprun 2>&1)" =~ function ]]; then
     _fzf_comprun "$@"
-  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
     shift
     fzf-tmux ${(Q)${(Z+n+)FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}}} -- "$@"
   else
diff --git a/shell/key-bindings.bash b/shell/key-bindings.bash
index a0b9eae..e157b07 100644
--- a/shell/key-bindings.bash
+++ b/shell/key-bindings.bash
@@ -27,7 +27,7 @@ __fzf_select__() {
 if [[ $- =~ i ]]; then
 
 __fzfcmd() {
-  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
     echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
diff --git a/shell/key-bindings.zsh b/shell/key-bindings.zsh
index f8cb782..1960892 100644
--- a/shell/key-bindings.zsh
+++ b/shell/key-bindings.zsh
@@ -54,7 +54,7 @@ __fsel() {
 }
 
 __fzfcmd() {
-  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
     echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
diff --git a/test/test_go.rb b/test/test_go.rb
index 108b6eb..420af34 100755
--- a/test/test_go.rb
+++ b/test/test_go.rb
@@ -2036,7 +2036,6 @@ module CompletionTest
     tmux.send_keys 'C-c'
 
     # FZF_TMUX=1
-    skip 'screen size too small' if `tput lines`.to_i < 15
     new_shell
     tmux.focus
     tmux.send_keys 'unset FZFFOOBR**', :Tab