diff --git a/src/Versions.in b/src/Versions.in
index 85031b38..ed737681 100644
--- a/src/Versions.in
+++ b/src/Versions.in
@@ -140,3 +140,11 @@ ALSA_1.2.6 {
 
     @SYMBOL_PREFIX@_snd_safe_strto*;
 } ALSA_1.1.6;
+
+ALSA_1.2.9 {
+  global:
+
+    @SYMBOL_PREFIX@snd_pcm_hw_params_is_perfect_drain;
+    @SYMBOL_PREFIX@snd_pcm_hw_params_set_drain_silence;
+    @SYMBOL_PREFIX@snd_pcm_hw_params_get_drain_silence;
+} ALSA_1.2.6;