diff --git a/src/freedombone-controlpanel b/src/freedombone-controlpanel
index a8da60a7..9ce87e5b 100755
--- a/src/freedombone-controlpanel
+++ b/src/freedombone-controlpanel
@@ -1812,8 +1812,8 @@ function performance_benchmarks {
     fi
 
     test_drive=/dev/sda1
-    if [ -f /dev/mmcblk0 ]; then
-        test_drive=/dev/mmcblk0
+    if [ -f /dev/mmcblk0p2 ]; then
+        test_drive=/dev/mmcblk0p2
     fi
     echo ''
     echo $"Testing read speed of drive $test_drive"