diff --git a/DroidFish/res/xml/preferences.xml b/DroidFish/res/xml/preferences.xml
index ce8aa87..c56389a 100644
--- a/DroidFish/res/xml/preferences.xml
+++ b/DroidFish/res/xml/preferences.xml
@@ -390,7 +390,7 @@
                 android:key="tbRootProbe"
                 android:title="@string/prefs_tbRootProbe_title"
                 android:summary="@string/prefs_tbRootProbe_summary"
-                android:defaultValue="false">
+                android:defaultValue="true">
             </CheckBoxPreference>
             <CheckBoxPreference
                 android:key="tbEngineProbe"
diff --git a/DroidFish/src/org/petero/droidfish/DroidFish.java b/DroidFish/src/org/petero/droidfish/DroidFish.java
index 15ebb31..f9acbda 100644
--- a/DroidFish/src/org/petero/droidfish/DroidFish.java
+++ b/DroidFish/src/org/petero/droidfish/DroidFish.java
@@ -621,7 +621,7 @@ public class DroidFish extends Activity implements GUIInterface {
 
         egtbOptions.hints = settings.getBoolean("tbHints", false);
         egtbOptions.hintsEdit = settings.getBoolean("tbHintsEdit", false);
-        egtbOptions.rootProbe = settings.getBoolean("tbRootProbe", false);
+        egtbOptions.rootProbe = settings.getBoolean("tbRootProbe", true);
         egtbOptions.engineProbe = settings.getBoolean("tbEngineProbe", true);
         String gtbPath = settings.getString("gtbPath", "");
         if (gtbPath.length() == 0) {