diff --git a/tests/run_3osds.sh b/tests/run_3osds.sh
index 07cd5234..6d6dfff0 100644
--- a/tests/run_3osds.sh
+++ b/tests/run_3osds.sh
@@ -117,3 +117,14 @@ check_qemu()
         sudo ln -s "$(realpath .)/build/src/block-vitastor.so" /usr/lib/x86_64-linux-gnu/qemu/block-vitastor.so
     fi
 }
+
+check_nbd()
+{
+    if [[ -d /sys/module/nbd && ! -e /dev/nbd0 ]]; then
+        max_part=$(cat /sys/module/nbd/parameters/max_part)
+        nbds_max=$(cat /sys/module/nbd/parameters/nbds_max)
+        for i in $(seq 1 $nbds_max); do
+            mknod /dev/nbd$((i-1)) b 43 $(((i-1)*(max_part+1)))
+        done
+    fi
+}
diff --git a/tests/test_rebalance_verify.sh b/tests/test_rebalance_verify.sh
index 23846f49..f1ca63ca 100755
--- a/tests/test_rebalance_verify.sh
+++ b/tests/test_rebalance_verify.sh
@@ -4,6 +4,8 @@ OSD_COUNT=7
 PG_COUNT=32
 . `dirname $0`/run_3osds.sh
 
+check_nbd
+
 IMG_SIZE=256
 
 $ETCDCTL put /vitastor/config/inode/1/1 '{"name":"testimg","size":'$((IMG_SIZE*1024*1024))'}'