diff --git a/README-CHANGES.xml b/README-CHANGES.xml
index 283dc2a..795e50e 100644
--- a/README-CHANGES.xml
+++ b/README-CHANGES.xml
@@ -92,8 +92,14 @@
     <c:release date="2024-04-04T00:00:00+00:00" is-open="false" ticket-system="org.lyrasis.jira" version="4.0.2">
       <c:changes/>
     </c:release>
-    <c:release date="2024-04-04T08:35:45+00:00" is-open="true" ticket-system="org.lyrasis.jira" version="4.0.3">
-      <c:changes/>
+    <c:release date="2024-04-04T11:27:20+00:00" is-open="true" ticket-system="org.lyrasis.jira" version="4.0.3">
+      <c:changes>
+        <c:change date="2024-04-04T11:27:20+00:00" summary="Use the correct page numbering mode.">
+          <c:tickets>
+            <c:ticket id="PP-1126"/>
+          </c:tickets>
+        </c:change>
+      </c:changes>
     </c:release>
   </c:releases>
   <c:ticket-systems>
diff --git a/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoFileSelectionFragment.kt b/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoFileSelectionFragment.kt
index a5b93e1..fcfac65 100644
--- a/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoFileSelectionFragment.kt
+++ b/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoFileSelectionFragment.kt
@@ -11,6 +11,7 @@ import android.widget.CheckBox
 import androidx.fragment.app.Fragment
 import org.librarysimplified.r2.api.SR2PageNumberingMode
 import org.librarysimplified.r2.api.SR2ScrollingMode
+import org.librarysimplified.r2.views.SR2ReaderModel
 
 class DemoFileSelectionFragment : Fragment(R.layout.demo_file_selection) {
 
@@ -45,12 +46,13 @@ class DemoFileSelectionFragment : Fragment(R.layout.demo_file_selection) {
     }
 
     this.demoLoaderPerChapterPageNumbering.setOnCheckedChangeListener { _, isChecked ->
-      DemoModel.perChapterNumbering = when (isChecked) {
+      SR2ReaderModel.perChapterNumbering = when (isChecked) {
         true -> SR2PageNumberingMode.PER_CHAPTER
         false -> SR2PageNumberingMode.WHOLE_BOOK
       }
     }
 
+    SR2ReaderModel.perChapterNumbering = SR2PageNumberingMode.WHOLE_BOOK
     return layout
   }
 
diff --git a/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoModel.kt b/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoModel.kt
index 4d45b11..e97e1d9 100644
--- a/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoModel.kt
+++ b/org.librarysimplified.r2.demo/src/main/java/org/librarysimplified/r2/demo/DemoModel.kt
@@ -1,7 +1,6 @@
 package org.librarysimplified.r2.demo
 
 import android.content.Context
-import org.librarysimplified.r2.api.SR2PageNumberingMode
 import org.librarysimplified.r2.api.SR2ScrollingMode
 import java.io.File
 
@@ -19,10 +18,6 @@ object DemoModel {
   var scrollMode: SR2ScrollingMode =
     SR2ScrollingMode.SCROLLING_MODE_PAGINATED
 
-  @Volatile
-  var perChapterNumbering: SR2PageNumberingMode =
-    SR2PageNumberingMode.PER_CHAPTER
-
   val database: DemoDatabase
     get() = this.databaseField
 
diff --git a/org.librarysimplified.r2.views/src/main/java/org/librarysimplified/r2/views/SR2ReaderModel.kt b/org.librarysimplified.r2.views/src/main/java/org/librarysimplified/r2/views/SR2ReaderModel.kt
index 4b5090c..b70b5b7 100644
--- a/org.librarysimplified.r2.views/src/main/java/org/librarysimplified/r2/views/SR2ReaderModel.kt
+++ b/org.librarysimplified.r2.views/src/main/java/org/librarysimplified/r2/views/SR2ReaderModel.kt
@@ -50,11 +50,13 @@ object SR2ReaderModel {
   var searchTerm: String =
     ""
 
+  @Volatile
   var scrollMode: SR2ScrollingMode =
     SR2ScrollingMode.SCROLLING_MODE_PAGINATED
 
+  @Volatile
   var perChapterNumbering: SR2PageNumberingMode =
-    SR2PageNumberingMode.PER_CHAPTER
+    SR2PageNumberingMode.WHOLE_BOOK
 
   private val viewCommandSource =
     PublishSubject.create<SR2ReaderViewCommand>()