diff --git a/metactl/pre-start.sh b/metactl/pre-start.sh
index 807ecfe..8f3d628 100644
--- a/metactl/pre-start.sh
+++ b/metactl/pre-start.sh
@@ -25,12 +25,12 @@ chmod o+rwx `dirname $ROOT`/virtual/ci/web;
 
 # 3. Create 'env' spy
 echo -ne "   * Launch 'env' spy..........";
-( sh $ROOT/ci/env.sh )&
+( bash $ROOT/ci/env.sh )&
 echo "launched";
 echo -n "$!" > $ROOT/ci/env.pid;
 
 # 3. Create 'web' spy
 echo -ne "   * Launch 'web' spy..........";
-( sh $ROOT/ci/web.sh )&
+( bash $ROOT/ci/web.sh )&
 echo "launched";
 echo -n "$!" > $ROOT/ci/web.pid;
\ No newline at end of file