diff --git a/openbsc/doc/channel_release.txt b/openbsc/doc/channel_release.txt
index 0f1b73c..e578aa8 100644
--- a/openbsc/doc/channel_release.txt
+++ b/openbsc/doc/channel_release.txt
@@ -55,7 +55,7 @@
 	* Release a channel used for handover
 	* Release the primary lchan with normal release, SACH deactivate
 
-chan_alloc.c:lchan_release(chan, sach_deactivate, reason)
+chan_alloc.c:lchan_release(chan, sacch_deactivate, reason)
 	* Start release procedure. It is working in steps with callbacks
           coming from the abis_rsl.c code.
         * Release all SAPI's > 0, wait for them to be released