diff --git a/pipewire-v4l2/src/pw-v4l2.in b/pipewire-v4l2/src/pw-v4l2.in
index e56245979..ac01587b0 100755
--- a/pipewire-v4l2/src/pw-v4l2.in
+++ b/pipewire-v4l2/src/pw-v4l2.in
@@ -54,7 +54,7 @@ done
 
 shift $(( OPTIND - 1 ))
 
-if [ x"$LD_PRELOAD" = x ] ; then
+if [ "$LD_PRELOAD" = "" ] ; then
    LD_PRELOAD="@LIBV4L2_PATH@/libpw-v4l2.so"
 else
    LD_PRELOAD="$LD_PRELOAD @LIBV4L2_PATH@/libpw-v4l2.so"