diff --git a/epwing_book.cc b/epwing_book.cc
index 111f031a..7f8b2704 100644
--- a/epwing_book.cc
+++ b/epwing_book.cc
@@ -899,7 +899,7 @@ bool EpwingBook::getNextHeadword( EpwingHeadword & head )
       }
       else
       {
-        allHeadwordPositions[ head.headword ]<<EWPos( pos.page, pos.offset );
+        allHeadwordPositions[ head.headword ] << EWPos( pos.page, pos.offset );
         return true;
       }
     }
@@ -973,7 +973,7 @@ bool EpwingBook::getNextHeadword( EpwingHeadword & head )
     }
     else
     {
-      allHeadwordPositions[ head.headword ]<<EWPos( pos.page, pos.offset );
+      allHeadwordPositions[ head.headword ] << EWPos( pos.page, pos.offset );
       return true;
     }
   }
diff --git a/epwing_book.hh b/epwing_book.hh
index 49e5f9ad..558d4684 100644
--- a/epwing_book.hh
+++ b/epwing_book.hh
@@ -78,7 +78,7 @@ class EpwingBook
   QStringList imageCacheList, soundsCacheList, moviesCacheList, fontsCacheList;
   QMap< QString, QString > baseFontsMap, customFontsMap;
   QVector< int > refPages, refOffsets;
-  QMap< QString, QList<EWPos> > allHeadwordPositions;
+  QMap< QString, QList< EWPos > > allHeadwordPositions;
   QVector< EWPos > LinksQueue;
   int refOpenCount, refCloseCount;
   static Mutex libMutex;