diff --git a/start b/start
index a5f0e6308c3d94b512da1536edeedb8acaae9ab9..8d2bb35e2d7e30d22b618150a5c3381c19b3e0e8 100644
--- a/start
+++ b/start
@@ -1,7 +1,5 @@
 #!/bin/bash
-
-MKL_NUM_THREADS=1
-NUMEXPR_NUM_THREADS=1
-OMP_NUM_THREADS=1
-
+export MKL_NUM_THREADS=1
+export NUMEXPR_NUM_THREADS=1
+export OMP_NUM_THREADS=1
 exec "$@"