diff --git a/ChangeLog b/ChangeLog
index 7f9790117..e28900cbf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -67,6 +67,7 @@
  + Fixed problem with the 'undo' command not observing the rc.color or the
    rc._forcecolor settings.
  + Fixed problem with extra blank line in the ghistory reports.
+ + Fixed a precision problem with average age on the summary report.
  + Clarified the documentation regarding the project name (taskwarrior) and
    the program name (task).
 
diff --git a/src/report.cpp b/src/report.cpp
index 0aa07265d..45be77a21 100644
--- a/src/report.cpp
+++ b/src/report.cpp
@@ -759,7 +759,7 @@ int handleReportSummary (std::string &outs)
         table.addCell (row, 0, (i->first == "" ? "(none)" : i->first));
         table.addCell (row, 1, countPending[i->first]);
         if (counter[i->first])
-          table.addCell (row, 2, Duration ((int) sumEntry[i->first] / counter[i->first]).format ());
+          table.addCell (row, 2, Duration ((int) (sumEntry[i->first] / (double)counter[i->first])).format ());
 
         int c = countCompleted[i->first];
         int p = countPending[i->first];