diff --git a/client_software/0110_nextcloud_talk_app/install.sh b/client_software/0110_nextcloud_talk_app/install.sh
index 4b46e36..f0127b8 100755
--- a/client_software/0110_nextcloud_talk_app/install.sh
+++ b/client_software/0110_nextcloud_talk_app/install.sh
@@ -11,6 +11,16 @@ if [ "$EUID" -ne 0 ]; then
     exit 1
 fi
 
+TALK_PID=$( pgrep -u $SUDO_USER "Nextcloud Talk" | head -n 1 )
+if [[ ! -z ${TALK_PID} ]]; then
+  echo "Stopping Nextcloud Talk with PID ${TALK_PID}"
+  kill ${TALK_PID} && sleep 0.5
+  if [[ $? -ne 0 ]]; then
+    echo "Service could not be stopped, please check why."
+    exit 1
+  fi
+fi
+
 FILENAME="Nextcloud.Talk-linux-x64.flatpak"
 SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
 if [ ${SCRIPTPATH::2} == "//" ]; then