diff --git a/audacious-plugins-2.1-underruns.patch b/audacious-plugins-2.1-underruns.patch
index 363a0c5..1cd684e 100644
--- a/audacious-plugins-2.1-underruns.patch
+++ b/audacious-plugins-2.1-underruns.patch
@@ -1,6 +1,6 @@
 diff -Nur audacious-plugins-fedora-2.1-orig/src/alsa-ng/alsa-core.c audacious-plugins-fedora-2.1/src/alsa-ng/alsa-core.c
 --- audacious-plugins-fedora-2.1-orig/src/alsa-ng/alsa-core.c	2009-10-21 13:18:35.825170784 +0200
-+++ audacious-plugins-fedora-2.1/src/alsa-ng/alsa-core.c	2009-10-21 13:20:45.520178677 +0200
++++ audacious-plugins-fedora-2.1/src/alsa-ng/alsa-core.c	2009-10-26 12:19:30.561386114 +0100
 @@ -27,6 +27,10 @@
  static gboolean pcm_going = FALSE;
  static GThread *audio_thread = NULL;
@@ -69,23 +69,43 @@ diff -Nur audacious-plugins-fedora-2.1-orig/src/alsa-ng/alsa-core.c audacious-pl
      }
  
      snd_pcm_drain(pcm_handle);
-@@ -339,6 +360,7 @@
-     gint err, bitwidth, ringbuf_size, buf_size;
+@@ -336,9 +357,10 @@
+ static gint
+ alsaplug_open_audio(AFormat fmt, gint rate, gint nch)
+ {
+-    gint err, bitwidth, ringbuf_size, buf_size;
++    gint err, bitwidth, ringbuf_size, buf_size, buf_size_norm;
      snd_pcm_format_t afmt;
      snd_pcm_hw_params_t *hwparams = NULL;
-+    guint time = 1000 * 100;
++    guint buf_time_min;
  
      afmt = alsaplug_format_convert(fmt);
      if (afmt == SND_PCM_FORMAT_UNKNOWN)
-@@ -365,6 +387,7 @@
+@@ -354,6 +376,10 @@
+         return -1;
+     }
+ 
++    buf_size = MAX(aud_cfg->output_buffer_size, 100);
++    buf_size_norm = MAX(buf_size-400, 100);
++    buf_time_min = buf_size_norm * 1000;
++
+     snd_pcm_hw_params_alloca(&hwparams);
+     snd_pcm_hw_params_any(pcm_handle, hwparams);
+ 
+@@ -365,18 +391,25 @@
       "snd_pcm_hw_params_set_channels");
      CHECK_FAIL (snd_pcm_hw_params_set_rate (pcm_handle, hwparams, rate, 0),
       "snd_pcm_hw_params_set_rate");
-+    snd_pcm_hw_params_set_buffer_time_min (pcm_handle, hwparams, &time, 0);
++    snd_pcm_hw_params_set_buffer_time_min (pcm_handle, hwparams, &buf_time_min, 0);
      CHECK_FAIL (snd_pcm_hw_params (pcm_handle, hwparams), "snd_pcm_hw_params");
  
      bitwidth = snd_pcm_format_physical_width(afmt);
-@@ -377,6 +400,13 @@
+     bps = (rate * bitwidth * nch) >> 3;
+ 
+-    buf_size = MAX(aud_cfg->output_buffer_size, 100);
+     ringbuf_size = buf_size * bps / 1000;
+ 
+     if (alsaplug_ringbuffer_init(&pcm_ringbuf, ringbuf_size) == -1) {
          _ERROR("alsaplug_ringbuffer_init failed");
          return -1;
      }
@@ -99,7 +119,7 @@ diff -Nur audacious-plugins-fedora-2.1-orig/src/alsa-ng/alsa-core.c audacious-pl
  
      pcm_going = TRUE;
      flush_request = -1;
-@@ -511,6 +541,7 @@
+@@ -511,6 +544,7 @@
  {
      g_mutex_lock (pcm_state_mutex);
      paused = p;
diff --git a/audacious-plugins.spec b/audacious-plugins.spec
index d0c2b47..a46f3fc 100644
--- a/audacious-plugins.spec
+++ b/audacious-plugins.spec
@@ -5,7 +5,7 @@
 
 Name: audacious-plugins
 Version: 2.1
-Release: 8%{?dist}
+Release: 9%{?dist}
 Summary: Plugins for the Audacious media player
 Group: Applications/Multimedia
 URL: http://audacious-media-player.org/
@@ -239,6 +239,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Oct 26 2009 Michael Schwendt <mschwendt@fedoraproject.org> - 2.1-9
+- Let buffer_time_min in underruns patch depend on default buffer size.
+
 * Sun Oct 25 2009 Michael Schwendt <mschwendt@fedoraproject.org> - 2.1-8
 - Patch modplug plugin to remove old cruft and fix playback.