diff --git a/files/process_motion_event.sh b/files/process_motion_event.sh
index ad741b5..72999ba 100644
--- a/files/process_motion_event.sh
+++ b/files/process_motion_event.sh
@@ -234,10 +234,10 @@ if [ -n "${ntfy_server}" ]; then
   message "Sending event to ntfy server '${ntfy_server}/motion_detection' ..."
   if [ -n "${file}" ]; then
     temp_file="$(mktemp /tmp/tmp.XXXXX.mkv)"
-    $(which ffmpeg) -filter_complex "[0:v] fps=12,scale=480:-1,split [a][b];[a] palettegen [p];[b][p] paletteuse"  -i "${file}" "${temp_file}"
+    result=$($(which ffmpeg) -filter_complex '[0:v] fps=12,scale=480:-1,split [a][b];[a] palettegen [p];[b][p] paletteuse'  -i "${file}" "${temp_file}")
     return_code=$?
     if [ ${return_code} != 0 ]; then
-      message "Error ${return_code} processing video file '${file}'"
+      message "Error ${return_code} processing video file '${file}'. ${result}"
     fi
     ntfy_data="{ \"topic\": \"motion_detection\", \"message\": \"Event ${event_type} on host ${motion_host} camera ${camera_name}\", \"filename\": \"${temp_file}\" }"
     curl -s "${ntfy_server}" -T "${temp_file}" -u "${ntfy_user}:${ntfy_password}" -d "${ntfy_data}"