diff --git a/debian/rules b/debian/rules
index 2d43926..0998ee5 100755
--- a/debian/rules
+++ b/debian/rules
@@ -6,5 +6,8 @@
 override_dh_auto_configure:
 	./configure --prefix=/usr --with-sasl --disable-smartcard --disable-celt051 --disable-gstreamer --enable-lz4
 
+override_dh_auto_test:
+	dh_auto_test --max-parallel=1
+
 %:
 	dh $@  -with quilt --with autotools-dev