diff --git a/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java b/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
index 28c619e79..b7e15c274 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
+++ b/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
@@ -199,6 +199,10 @@ public class BookCollectionShadow implements IBookCollection, ServiceConnection
 
 		try {
 			final TextPosition position = myInterface.getStoredPosition(bookId);
+			if (position == null) {
+				return null;
+			}
+
 			return new ZLTextFixedPosition(
 				position.ParagraphIndex, position.ElementIndex, position.CharIndex
 			);
@@ -208,7 +212,7 @@ public class BookCollectionShadow implements IBookCollection, ServiceConnection
 	}
 
 	public synchronized void storePosition(long bookId, ZLTextPosition position) {
-		if (myInterface != null) {
+		if (position != null && myInterface != null) {
 			try {
 				myInterface.storePosition(bookId, new TextPosition(
 					position.getParagraphIndex(), position.getElementIndex(), position.getCharIndex()
diff --git a/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java b/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
index cd96f7f4f..d1fa876cb 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
+++ b/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
@@ -172,12 +172,19 @@ public class LibraryService extends Service {
 
 		public TextPosition getStoredPosition(long bookId) {
 			final ZLTextPosition position = myCollection.getStoredPosition(bookId);
+			if (position == null) {
+				return null;
+			}
+
 			return new TextPosition(
 				position.getParagraphIndex(), position.getElementIndex(), position.getCharIndex()
 			);
 		}
 
 		public void storePosition(long bookId, TextPosition position) {
+			if (position == null) {
+				return;
+			}
 			myCollection.storePosition(bookId, new ZLTextFixedPosition(
 				position.ParagraphIndex, position.ElementIndex, position.CharIndex
 			));