diff --git a/openbsc/doc/examples/osmo-nitb/bs11/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/bs11/openbsc.cfg
index 542edd6..6c47a90 100644
--- a/openbsc/doc/examples/osmo-nitb/bs11/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/bs11/openbsc.cfg
@@ -29,28 +29,28 @@
    max_power_red 0
    rsl e1 line 0 timeslot 1 sub-slot full
    rsl e1 tei 1
-    timeslot 0
-     phys_chan_config CCCH+SDCCH4
-     e1 line 0 timeslot 1 sub-slot full
-    timeslot 1
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 2 sub-slot 1
-    timeslot 2
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 2 sub-slot 2
-    timeslot 3
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 2 sub-slot 3
-    timeslot 4
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 3 sub-slot 0
-    timeslot 5
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 3 sub-slot 1
-    timeslot 6
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 3 sub-slot 2
-    timeslot 7
-     phys_chan_config TCH/F
-     e1 line 0 timeslot 3 sub-slot 3
+   timeslot 0
+    phys_chan_config CCCH+SDCCH4
+    e1 line 0 timeslot 1 sub-slot full
+   timeslot 1
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 2 sub-slot 1
+   timeslot 2
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 2 sub-slot 2
+   timeslot 3
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 2 sub-slot 3
+   timeslot 4
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 3 sub-slot 0
+   timeslot 5
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 3 sub-slot 1
+   timeslot 6
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 3 sub-slot 2
+   timeslot 7
+    phys_chan_config TCH/F
+    e1 line 0 timeslot 3 sub-slot 3