diff --git a/bin/vdn-php b/bin/vdn-php
index 1c5cf9a..f2d8680 100755
--- a/bin/vdn-php
+++ b/bin/vdn-php
@@ -32,4 +32,4 @@ vdn-ssh \
   -R 45679:127.0.0.1:45678 \
   -L $redirected:127.0.0.1:$redirected \
   test@$GUEST_SYS \
-  "mkdir -p ${MOUNT_POINT}; sshfs localhost: ${MOUNT_POINT} -o directport=45679; cd ${MOUNT_POINT}; fuser -k $redirected/tcp; php $*"
+  "mkdir -p ${MOUNT_POINT}; sshfs localhost: ${MOUNT_POINT} -o directport=45679; cd ${MOUNT_POINT}; fuser -k $redirected/tcp; export XDEBUG_MODE=coverage; php $*"