diff --git a/.travis.yml b/.travis.yml
index f6a326eb4..ec89038c0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,7 @@ env:
                 - TOPDIR=`pwd`/../..
                 - PROXY_STR=":hermit:M:7:\\x42::`pwd`/RWTH-OS/HermitCore/hermit/tools/proxy"
                 - HERMIT_ISLE=qemu
-                - HERMIT_CPUS=2
+                - HERMIT_CPUS=1
                 - HERMIT_MEM="128M"
                 - HERMIT_KVM="0"
                 - HERMIT_VERBOSE="1"