diff --git a/audio/xanalyser/files/patch-src_pcm-oss.cc b/audio/xanalyser/files/patch-src_pcm-oss.cc
new file mode 100644
index 000000000000..69579219659c
--- /dev/null
+++ b/audio/xanalyser/files/patch-src_pcm-oss.cc
@@ -0,0 +1,12 @@
+--- src/pcm-oss.cc	2014-09-06 09:44:07.000000000 +0200
++++ src/pcm-oss.cc	2014-09-06 09:45:02.000000000 +0200
+@@ -100,7 +100,8 @@
+     }
+ 
+     int tmp_buffer_size = want_buffer_size;
+-    if (ioctl (fd, SNDCTL_DSP_GETBLKSIZE, &tmp_buffer_size) == -1) {
++    if (ioctl (fd, SNDCTL_DSP_SETBLKSIZE, &tmp_buffer_size) == -1 ||
++	ioctl (fd, SNDCTL_DSP_GETBLKSIZE, &tmp_buffer_size) == -1) {
+ 	cerr << "error " << strerror (errno) << '\n';
+ 	return;
+     }