diff --git a/nightly/conf/pcbart.conf b/nightly/conf/pcbart.conf
index 245309353..237db2e41 100644
--- a/nightly/conf/pcbart.conf
+++ b/nightly/conf/pcbart.conf
@@ -3,4 +3,5 @@
 
 ABT_DETAILS="PC Bart, x86_64, openSUSE 11.1"
 ABT_JOBS=3
+ABT_TMPDIR=tmp-scst-${USER}-$$
 ABT_KERNELS="2.6.23.17 2.6.29.1"