diff --git a/src/freedombone-controlpanel b/src/freedombone-controlpanel
index 9ce87e5b..0796c262 100755
--- a/src/freedombone-controlpanel
+++ b/src/freedombone-controlpanel
@@ -1812,7 +1812,7 @@ function performance_benchmarks {
     fi
 
     test_drive=/dev/sda1
-    if [ -f /dev/mmcblk0p2 ]; then
+    if ls /dev/mmcblk0p2; then
         test_drive=/dev/mmcblk0p2
     fi
     echo ''