diff --git a/sonarr/rootfs/etc/cont-init.d/21-ffprobe.sh b/sonarr/rootfs/etc/cont-init.d/21-ffprobe.sh
new file mode 100755
index 000000000..a85702477
--- /dev/null
+++ b/sonarr/rootfs/etc/cont-init.d/21-ffprobe.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/with-contenv bashio
+# shellcheck shell=bash
+set -e
+
+# Sonarr v4 looks for ffprobe in its own binary directory (/app/sonarr/bin/)
+# via GlobalFFOptions.Configure(options => options.BinaryFolder = AppDomain.CurrentDomain.BaseDirectory)
+# Symlink the system-installed ffprobe there so Sonarr can find a working copy
+
+if [ -f /usr/bin/ffprobe ] && [ -d /app/sonarr/bin ]; then
+    ln -sf /usr/bin/ffprobe /app/sonarr/bin/ffprobe
+    echo "Symlinked /usr/bin/ffprobe to /app/sonarr/bin/ffprobe"
+fi