diff --git a/ChangeLog b/ChangeLog
index 85776dee1..c2f3ac8cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+===== 1.8 (May ??, 2013) =====
+
+* Fixed series index representation: 10 instead 1E+1
+
 ===== 1.7.9 (Apr 23, 2013) =====
 * Fixed Ukrainian hyphenations
 * Fixed missing paragraph before new section issue (in some book formats)
diff --git a/src/org/geometerplus/android/fbreader/library/BookInfoActivity.java b/src/org/geometerplus/android/fbreader/library/BookInfoActivity.java
index 3988fd682..602e3d05c 100644
--- a/src/org/geometerplus/android/fbreader/library/BookInfoActivity.java
+++ b/src/org/geometerplus/android/fbreader/library/BookInfoActivity.java
@@ -243,7 +243,7 @@ public class BookInfoActivity extends Activity {
 		setupInfoPair(R.id.book_series, "series", series == null ? null : series.Series.getTitle());
 		String seriesIndexString = null;
 		if (series != null && series.Index != null) {
-			seriesIndexString = series.Index.toString();
+			seriesIndexString = series.Index.toPlainString();
 		}
 		setupInfoPair(R.id.book_series_index, "indexInSeries", seriesIndexString);
 
diff --git a/src/org/geometerplus/android/fbreader/libraryService/SQLiteBooksDatabase.java b/src/org/geometerplus/android/fbreader/libraryService/SQLiteBooksDatabase.java
index c754bc152..1f8ee0b67 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/SQLiteBooksDatabase.java
+++ b/src/org/geometerplus/android/fbreader/libraryService/SQLiteBooksDatabase.java
@@ -607,7 +607,7 @@ final class SQLiteBooksDatabase extends BooksDatabase {
 			myInsertBookSeriesStatement.bindLong(2, seriesId);
 			SQLiteUtil.bindString(
 				myInsertBookSeriesStatement, 3,
-				seriesInfo.Index != null ? seriesInfo.Index.toString() : null
+				seriesInfo.Index != null ? seriesInfo.Index.toPlainString() : null
 			);
 			myInsertBookSeriesStatement.execute();
 		}
diff --git a/src/org/geometerplus/fbreader/book/XMLSerializer.java b/src/org/geometerplus/fbreader/book/XMLSerializer.java
index 1ea8fd1b9..b21a27fb4 100644
--- a/src/org/geometerplus/fbreader/book/XMLSerializer.java
+++ b/src/org/geometerplus/fbreader/book/XMLSerializer.java
@@ -205,7 +205,7 @@ class XMLSerializer extends AbstractSerializer {
 		if (seriesInfo != null) {
 			appendTagWithContent(buffer, "calibre:series", seriesInfo.Series.getTitle());
 			if (seriesInfo.Index != null) {
-				appendTagWithContent(buffer, "calibre:series_index", seriesInfo.Index);
+				appendTagWithContent(buffer, "calibre:series_index", seriesInfo.Index.toPlainString());
 			}
 		}