diff --git a/app/src/main/java/io/pslab/sensors/AbstractSensorActivity.java b/app/src/main/java/io/pslab/sensors/AbstractSensorActivity.java
index b9478cfcf..7b1928366 100644
--- a/app/src/main/java/io/pslab/sensors/AbstractSensorActivity.java
+++ b/app/src/main/java/io/pslab/sensors/AbstractSensorActivity.java
@@ -31,7 +31,7 @@ abstract class AbstractSensorActivity extends AppCompatActivity {
     private static final String TAG = AbstractSensorActivity.class.getSimpleName();
 
     private static final String KEY_PLAY = TAG + "_play";
-    private static final String KEY_RUN_INDEFINITELY = TAG + "_runIndefinitely";
+    private static final String KEY_RUN_INDEFINITELY = TAG + "_run_indefinitely";
     private static final String KEY_TIME_GAP = TAG + "_time_gap";
     private static final String KEY_FLAG = TAG + "_flag";
     private static final String KEY_START_TIME = TAG + "_start_time";
diff --git a/app/src/main/java/io/pslab/sensors/SensorAPDS9960.java b/app/src/main/java/io/pslab/sensors/SensorAPDS9960.java
index 047ca8fdf..7ef54a118 100644
--- a/app/src/main/java/io/pslab/sensors/SensorAPDS9960.java
+++ b/app/src/main/java/io/pslab/sensors/SensorAPDS9960.java
@@ -176,7 +176,7 @@ protected void onSaveInstanceState(@NonNull Bundle outState) {
         outState.putString(KEY_VALUE_GREEN, tvSensorAPDS9960Green.getText().toString());
         outState.putString(KEY_VALUE_BLUE, tvSensorAPDS9960Blue.getText().toString());
         outState.putString(KEY_VALUE_CLEAR, tvSensorAPDS9960Clear.getText().toString());
-        outState.putString(KEY_ENTRIES_PROXIMITY, tvSensorAPDS9960Proximity.getText().toString());
+        outState.putString(KEY_VALUE_PROXIMITY, tvSensorAPDS9960Proximity.getText().toString());
         outState.putString(KEY_VALUE_GESTURE, tvSensorAPDS9960Gesture.getText().toString());
 
         outState.putParcelableArrayList(KEY_ENTRIES_LUX, entriesLux);