diff --git a/lib/ramdisk-functions b/lib/ramdisk-functions
index a8b249c9..c35c3b61 100644
--- a/lib/ramdisk-functions
+++ b/lib/ramdisk-functions
@@ -40,8 +40,7 @@ function ensure_binaries() {
   done
 
   for _BIN in $BINARY_DEPS ; do
-    _LOCATION=""
-    _LOCATION="${_LOCATION:-$(which $_BIN)}"
+    _LOCATION=$(which "$_BIN" || echo "")
     if [ -z "$_LOCATION" ]; then
       echo "$_BIN is not found in your PATH" 1>&2
       echo "Please install it on your system"