diff --git a/offlineimap/head/debian/changelog b/offlineimap/head/debian/changelog
index 17b4d36..a104722 100644
--- a/offlineimap/head/debian/changelog
+++ b/offlineimap/head/debian/changelog
@@ -13,6 +13,7 @@ offlineimap (3.99.15) unstable; urgency=low
   * Made OfflineIMAP IPv6-aware.  Used the short patch from
     Adriaan Peeters <apeeters@lashout.net> in Debian bug report 186636.
     Closes: #186636.
+  * autorefresh may now be a floating-point value.  Closes: #190060.
 
  -- John Goerzen <jgoerzen@complete.org>  Mon, 28 Apr 2003 14:00:32 -0500
 
diff --git a/offlineimap/head/offlineimap.conf b/offlineimap/head/offlineimap.conf
index efb215c..c69c362 100644
--- a/offlineimap/head/offlineimap.conf
+++ b/offlineimap/head/offlineimap.conf
@@ -160,7 +160,8 @@ remoterepository = RemoteExample
 
 # You can have offlineimap continue running indefinately, automatically
 # syncing your mail periodically.  If you want that, specify how
-# frequently to do that (in minutes) here.
+# frequently to do that (in minutes) here.  You can also specify
+# fractional minutes (ie, 3.25).
 
 # autorefresh = 5
 
diff --git a/offlineimap/head/offlineimap/CustomConfig.py b/offlineimap/head/offlineimap/CustomConfig.py
index 9e03682..155b5d2 100644
--- a/offlineimap/head/offlineimap/CustomConfig.py
+++ b/offlineimap/head/offlineimap/CustomConfig.py
@@ -34,6 +34,12 @@ class CustomConfigParser(ConfigParser):
         else:
             return default
 
+    def getdefaultfloat(self, section, option, default, *args, **kwargs):
+        if self.has_option(section, option):
+            return apply(self.getfloat, [section, option] + list(args), kwargs)
+        else:
+            return default
+
     def getdefaultboolean(self, section, option, default, *args, **kwargs):
         if self.has_option(section, option):
             return apply(self.getboolean, [section, option] + list(args),
@@ -91,3 +97,8 @@ class ConfigHelperMixin:
                                          self.getconfig().getdefaultint,
                                          self.getconfig().getint)
     
+    def getconffloat(self, option, default = CustomConfigDefault):
+        return self._confighelper_runner(option, default,
+                                         self.getconfig().getdefaultfloat,
+                                         self.getconfig().getfloat)
+    
diff --git a/offlineimap/head/offlineimap/accounts.py b/offlineimap/head/offlineimap/accounts.py
index 168a092..348d151 100644
--- a/offlineimap/head/offlineimap/accounts.py
+++ b/offlineimap/head/offlineimap/accounts.py
@@ -43,8 +43,8 @@ class Account(CustomConfig.ConfigHelperMixin):
         self.metadatadir = config.getmetadatadir()
         self.localeval = config.getlocaleval()
         self.ui = UIBase.getglobalui()
-        self.refreshperiod = self.getconfint('autorefresh', 0)
-        if self.refreshperiod == 0:
+        self.refreshperiod = self.getconffloat('autorefresh', 0.0)
+        if self.refreshperiod == 0.0:
             self.refreshperiod = None
 
     def getlocaleval(self):
@@ -79,7 +79,7 @@ class Account(CustomConfig.ConfigHelperMixin):
         for item in kaobjs:
             item.startkeepalive()
         
-        refreshperiod = self.refreshperiod * 60
+        refreshperiod = int(self.refreshperiod * 60)
         sleepresult = self.ui.sleep(refreshperiod)
         if sleepresult == 2:
             # Cancel keep-alive, but don't bother terminating threads