diff --git a/birdnet-go/rootfs/etc/cont-init.d/99-run.sh b/birdnet-go/rootfs/etc/cont-init.d/99-run.sh
index 10780b58e..57aad64c4 100755
--- a/birdnet-go/rootfs/etc/cont-init.d/99-run.sh
+++ b/birdnet-go/rootfs/etc/cont-init.d/99-run.sh
@@ -6,9 +6,18 @@ set -e
 # INITALISATION #
 #################
 
-bashio::log.info "ALSA_CARD option is set to $(bashio::config "ALSA_CARD"). If the microphone doesn't work, please adapt it"
 echo " "
 
+# Check if alsa_card is provided
+CONFIG_LOCATION="/config/config.yaml"
+if bashio::config.has_value "ALSA_CARD"; then
+    alsa_card=$(bashio::config 'ALSA_CARD')
+    bashio::log.info "ALSA_CARD option set to $alsa_card"
+    bashio::log.info "ALSA_CARD option is set to ${alsa_card}. Please ensure it is the correct card"
+    sed -i "s/card:.*/card: ${alsa_card}/g" "$CONFIG_LOCATION"
+    yq -i -y ".audio.card = \"${alsa_card}\"" "${CONFIG_FILE}"
+fi
+
 # Adjust microphone volume if needed
 if command -v amixer > /dev/null 2> /dev/null; then
     current_volume="$(amixer sget Capture | grep -oP '\[\d+%\]' | tr -d '[]%' | head -1 2> /dev/null || echo "100")" || true