diff --git a/audacity-1.3.13-div_by_zero_fix.patch b/audacity-1.3.13-div_by_zero_fix.patch
new file mode 100644
index 0000000..62b689b
--- /dev/null
+++ b/audacity-1.3.13-div_by_zero_fix.patch
@@ -0,0 +1,82 @@
+--- src/widgets/ProgressDialog.cpp	2011-04-07 01:35:50.000000000 +0200
++++ src/widgets/ProgressDialog.cpp	2011-09-04 21:49:20.956000014 +0200
+@@ -1338,7 +1338,14 @@
+ int
+ ProgressDialog::Update(wxULongLong_t current, wxULongLong_t total, const wxString & message)
+ {
+-   return Update((int)(current * 1000 / total), message);
++   if (total != 0)
++   {
++      return Update((int)(current * 1000 / total), message);
++   }
++   else
++   {
++      return Update(1000, message);
++   }
+ }
+ 
+ //
+@@ -1347,7 +1354,14 @@
+ int
+ ProgressDialog::Update(wxLongLong current, wxLongLong total, const wxString & message)
+ {
+-   return Update((int)(current.GetValue() * 1000ll / total.GetValue()), message);
++   if (total.GetValue() != 0)
++   {
++      return Update((int)(current.GetValue() * 1000ll / total.GetValue()), message);
++   }
++   else
++   {
++      return Update(1000, message);
++   }
+ }
+ 
+ //
+@@ -1356,7 +1370,14 @@
+ int
+ ProgressDialog::Update(wxLongLong_t current, wxLongLong_t total, const wxString & message)
+ {
+-   return Update((int)(current * 1000ll / total), message);
++   if (total != 0)
++   {
++      return Update((int)(current * 1000ll / total), message);
++   }
++   else
++   {
++      return Update(1000, message);
++   }
+ }
+ 
+ //
+@@ -1365,7 +1386,14 @@
+ int
+ ProgressDialog::Update(int current, int total, const wxString & message)
+ {
+-   return Update((int)(current *  ((double)(1000.0 / total))), message);
++   if (total != 0)
++   {
++      return Update((int)(current *  ((double)(1000.0 / total))), message);
++   }
++   else
++   {
++      return Update(1000, message);
++   }
+ }
+ 
+ //
+@@ -1374,7 +1402,14 @@
+ int
+ ProgressDialog::Update(double current, double total, const wxString & message)
+ {
+-   return Update((int)(current * 1000.0 / total), message);
++   if (total != 0)
++   {
++      return Update((int)(current * 1000.0 / total), message);
++   }
++   else
++   {
++      return Update(1000, message);
++   }
+ }
+ 
+ //
diff --git a/audacity.changes b/audacity.changes
index e9070d4..ca050d7 100644
--- a/audacity.changes
+++ b/audacity.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Sep  7 07:36:18 UTC 2011 - mseben@gmail.com
+
+- added audacity-1.3.13-div_by_zero_fix.patch to fix audacity crash
+  while opening invalid wav file (bnc#711737)
+
 -------------------------------------------------------------------
 Fri Aug 19 19:47:51 UTC 2011 - reddwarf@opensuse.org
 
diff --git a/audacity.spec b/audacity.spec
index c914943..4ad13a3 100644
--- a/audacity.spec
+++ b/audacity.spec
@@ -64,6 +64,8 @@ Source1:        %{name}.png
 Source2:        %{name}-license-nyquist
 # PATCH-FIX-OPENSUSE %{name}-no_buildstamp.patch reddwarf@opensuse.org -- this patch removes the buildstamp
 Patch0:         %{name}-no_buildstamp.patch
+# PATCH-FIX-UPSTREAM %{name}-1.3.13-div_by_zero_fix.patch mseben@gmail.com -- fix crash (bnc#711737), fix already in upstream svn
+Patch1:         %{name}-1.3.13-div_by_zero_fix.patch 
 Patch16:        %{name}-implicit.patch
 # PATCH-FIX-UPSTREAM %{name}-1.3.13-ffmpeg.patch reddwarf@opensuse.org -- make it compile against latest ffmpeg
 Patch17:        %{name}-1.3.13-ffmpeg.patch
@@ -83,6 +85,7 @@ physical memory size of your computer.
 %prep
 %setup -q -n %{name}-src-%{version}-beta
 %patch0
+%patch1
 %patch16
 %if %{with ffmpeg}
 %patch17 -p1