diff --git a/multimedia/converter/soundconverter/files/Prevent_crash_when_duration_is_not_known_or_zero.patch b/multimedia/converter/soundconverter/files/Prevent_crash_when_duration_is_not_known_or_zero.patch
new file mode 100644
index 0000000000..a460bd98b7
--- /dev/null
+++ b/multimedia/converter/soundconverter/files/Prevent_crash_when_duration_is_not_known_or_zero.patch
@@ -0,0 +1,23 @@
+From 5ab29fa1ca3c347e21b7dc865ae971c10758d7b0 Mon Sep 17 00:00:00 2001
+From: Gautier Portet <gautier.portet@telespazio.com>
+Date: Mon, 25 Oct 2021 14:43:53 +0200
+Subject: [PATCH] Prevent crash when duration is not known or zero
+
+Closes lp:1948670, thank Richard.
+---
+ soundconverter/gstreamer/converter.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/soundconverter/gstreamer/converter.py b/soundconverter/gstreamer/converter.py
+index 0789e54..9e97385 100644
+--- a/soundconverter/gstreamer/converter.py
++++ b/soundconverter/gstreamer/converter.py
+@@ -260,7 +260,7 @@ def get_progress(self):
+             return 0, duration
+ 
+         position = self._query_position()
+-        progress = position / duration
++        progress = position / duration if duration else 0
+         progress = min(max(progress, 0.0), 1.0)
+         return progress, duration
+ 
diff --git a/multimedia/converter/soundconverter/pspec.xml b/multimedia/converter/soundconverter/pspec.xml
index 00735a649c..8b0d487718 100644
--- a/multimedia/converter/soundconverter/pspec.xml
+++ b/multimedia/converter/soundconverter/pspec.xml
@@ -28,6 +28,9 @@
 			<Dependency>python3-distutils-extra</Dependency>
 			<Dependency>python3-pygobject3-devel</Dependency>
 		</BuildDependencies>
+		<Patches>
+			<Patch level="1">Prevent_crash_when_duration_is_not_known_or_zero.patch</Patch>
+		</Patches>
 	</Source>
 
 	<Package>
@@ -55,7 +58,7 @@
 
 	<History>
 		<Update release="3">
-			<Date>2021-10-23</Date>
+			<Date>2021-10-28</Date>
 			<Version>4.0.2</Version>
 			<Comment>Version bump.</Comment>
 			<Name>fury</Name>