diff --git a/busybox.sh b/busybox.sh
index 547aca4..3382980 100755
--- a/busybox.sh
+++ b/busybox.sh
@@ -7,7 +7,7 @@
 `
 test "${RAW}" != "" ||  exit
 cd ${2:-.}
-# I added in the extra "ls" so only source files that
-# actually exist will show up in the compile list.
-ls -1 $RAW 2>/dev/null | sed -e 's/\.c$/\.o/g'
+# By running $RAW through "ls", we avoid listing
+# source files that don't exist.
+ls $RAW 2>/dev/null | tr '\n' ' '