diff --git a/copy-firmware.sh b/copy-firmware.sh
index 6a32127..7c1821e 100755
--- a/copy-firmware.sh
+++ b/copy-firmware.sh
@@ -164,9 +164,10 @@ if [ "$num_jobs" -gt 1 ]; then
     parallel -j"$num_jobs" -a "$parallel_args_file"
 fi
 
-# Verify no broken symlinks
-if test "$(find "$destdir" -xtype l | wc -l)" -ne 0 ; then
-    err "Broken symlinks found:\n$(find "$destdir" -xtype l)"
+# Verify no broken symlinks without relying on non-portable find -xtype.
+broken_links=$(find "$destdir" -type l ! -exec test -e {} \; -print)
+if test -n "$broken_links"; then
+    err "Broken symlinks found:\n$broken_links"
 fi
 
 exit 0