diff --git a/tests/bzr-definitions b/tests/bzr-definitions
--- a/tests/bzr-definitions
+++ b/tests/bzr-definitions
@@ -2,6 +2,7 @@
 
 "$TESTDIR/hghave" bzr || exit 80
 
+export TERM=dumb
 echo '[extensions]' >> $HGRCPATH
 echo 'convert = ' >> $HGRCPATH
 echo 'hgext.graphlog = ' >> $HGRCPATH