diff --git a/doc/asoundrc.txt b/doc/asoundrc.txt
index 8c762da3..4af67fdf 100644
--- a/doc/asoundrc.txt
+++ b/doc/asoundrc.txt
@@ -318,6 +318,7 @@ pcm.NAME {
   slave STR		# Slave name (see pcm_slave)
   ipc_key INT		# Unique ipc key
   ipc_perm INT		# ipc permissions (default 0600)
+  ipc_gid INT		# ipc gid (default audio)
   ipc_key_add_uid BOOL  # Add current uid to ipc_key
   bindings {		# Bindings table
     N INT		# Slave channel for client channel N
@@ -327,6 +328,7 @@ pcm.NAME {
   slave STR		# Slave name (see pcm_slave)
   ipc_key INT		# Unique ipc key
   ipc_perm INT		# ipc permissions (default 0600)
+  ipc_gid INT		# ipc gid (default audio)
   ipc_key_add_uid BOOL  # Add current uid to ipc_key
   bindings {		# Bindings table
     N INT		# Slave channel for client channel N
@@ -336,6 +338,7 @@ pcm.NAME {
   slave STR		# Slave name (see pcm_slave)
   ipc_key INT		# Unique ipc key
   ipc_perm INT		# ipc permissions (default 0600)
+  ipc_gid INT		# ipc gid (default audio)
   ipc_key_add_uid BOOL  # Add current uid to ipc_key
   bindings {		# Bindings table
     N INT		# Slave channel for client channel N