diff --git a/debian/changelog b/debian/changelog
index fc5e1090f..31467d6f7 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -370,6 +370,7 @@ linux (4.9.25-1) UNRELEASED; urgency=medium
     (except on armel/marvell) (Closes: #788290)
   * media: Enable VIDEO_TW5864, VIDEO_TW686X as modules
   * [x86] amdgpu,sound/soc: Enable DRM_AMD_ACP; enable SND_SOC_AMD_ACP as module
+  * hda: Set SND_HDA_PREALLOC_SIZE=2048 as recommended for PulseAudio
 
   [ Salvatore Bonaccorso ]
   * ping: implement proper locking (CVE-2017-2671)
diff --git a/debian/config/config b/debian/config/config
index ba8696557..77591bead 100644
--- a/debian/config/config
+++ b/debian/config/config
@@ -7041,6 +7041,11 @@ CONFIG_SND_BEBOB=m
 CONFIG_SND_FIREWIRE_DIGI00X=m
 CONFIG_SND_FIREWIRE_TASCAM=m
 
+##
+## file: sound/hda/Kconfig
+##
+CONFIG_SND_HDA_PREALLOC_SIZE=2048
+
 ##
 ## file: sound/isa/Kconfig
 ##