diff --git a/run/run.sh b/run/run.sh
index 72194c1..2b7080d 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -53,6 +53,6 @@ set -m
 set +m
 
 # Since we started the QEMU process with -m, we need to poll if it's still running
-while [ -d "/proc/$(cat ${_QEMU_PID})"  ]; do
+while s=`ps -p "$(cat ${_QEMU_PID})" -o s=` && [[ "$s" && "$s" != 'Z' ]]; do
   sleep 1
 done