diff --git a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
index 7a44308..cfc1be6 100644
--- a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
@@ -59,19 +59,19 @@
    nominal power 23
    max_power_red 20
    rsl e1 tei 0
-    timeslot 0
-     phys_chan_config CCCH+SDCCH4
-    timeslot 1
-     phys_chan_config SDCCH8
-    timeslot 2
-     phys_chan_config TCH/F
-    timeslot 3
-     phys_chan_config TCH/F
-    timeslot 4
-     phys_chan_config TCH/F
-    timeslot 5
-     phys_chan_config TCH/F
-    timeslot 6
-     phys_chan_config TCH/F
-    timeslot 7
-     phys_chan_config TCH/F
+   timeslot 0
+    phys_chan_config CCCH+SDCCH4
+   timeslot 1
+    phys_chan_config SDCCH8
+   timeslot 2
+    phys_chan_config TCH/F
+   timeslot 3
+    phys_chan_config TCH/F
+   timeslot 4
+    phys_chan_config TCH/F
+   timeslot 5
+    phys_chan_config TCH/F
+   timeslot 6
+    phys_chan_config TCH/F
+   timeslot 7
+    phys_chan_config TCH/F