diff --git a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
index 93467c49..75141ad2 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
@@ -32,10 +32,11 @@ import org.solovyev.android.calculator.math.edit.CalculatorFunctionsFragment;
 import org.solovyev.android.calculator.math.edit.CalculatorOperatorsFragment;
 import org.solovyev.android.calculator.math.edit.CalculatorVarsFragment;
 import org.solovyev.android.calculator.matrix.CalculatorMatrixEditFragment;
+import org.solovyev.android.calculator.plot.CalculatorPlotFragment;
 import org.solovyev.android.calculator.plot.CalculatorPlotFunctionSettingsActivity;
 import org.solovyev.android.calculator.plot.CalculatorPlotFunctionsActivity;
 import org.solovyev.android.calculator.plot.CalculatorPlotRangeActivity;
-import org.solovyev.android.calculator.plot.PlotterFragment;
+import org.solovyev.android.calculator.preferences.PurchaseDialogActivity;
 
 import javax.annotation.Nonnull;
 
@@ -54,12 +55,12 @@ public enum CalculatorFragmentType {
     variables(CalculatorVarsFragment.class, R.layout.vars_fragment, R.string.c_vars),
     functions(CalculatorFunctionsFragment.class, R.layout.math_entities_fragment, R.string.c_functions),
     operators(CalculatorOperatorsFragment.class, R.layout.math_entities_fragment, R.string.c_operators),
-    plotter(PlotterFragment.class, R.layout.cpp_plotter_fragment, R.string.c_graph),
+    plotter(CalculatorPlotFragment.class, R.layout.cpp_plotter_fragment, R.string.c_graph),
     plotter_functions(CalculatorPlotFunctionsActivity.CalculatorPlotFunctionsFragment.class, R.layout.cpp_plot_functions_fragment, R.string.cpp_plot_functions),
     plotter_function_settings(CalculatorPlotFunctionSettingsActivity.CalculatorPlotFunctionSettingsFragment.class, R.layout.cpp_plot_function_settings_fragment, R.string.cpp_plot_function_settings),
     plotter_range(CalculatorPlotRangeActivity.CalculatorPlotRangeFragment.class, R.layout.cpp_plot_range_fragment, R.string.cpp_plot_range),
 
-    purchase_dialog(CalculatorPlotRangeActivity.CalculatorPlotRangeFragment.class, R.layout.cpp_purchase_dialog_fragment, R.string.cpp_purchase_title),
+    purchase_dialog(PurchaseDialogActivity.PurchaseDialogFragment.class, R.layout.cpp_purchase_dialog_fragment, R.string.cpp_purchase_title),
 
     dialog(CalculatorDialogActivity.CalculatorDialogFragment.class, R.layout.cpp_dialog_fragment, R.string.cpp_message),