diff --git a/ChangeLog b/ChangeLog
index e4862968a..e78f0b166 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,6 +6,9 @@
 	code will always succeed and the new code reuses
 	all the business logic used for the Web interface
 	of SOGo.
+	* SOPE/NGCards/iCalRecurrenceRule.m
+	Modified setInterval: so that when the value is
+	equal to 1, we do NOT set it.
 
 2010-08-03  Ludovic Marcotte  <lmarcotte@inverse.ca>
 	
diff --git a/SOPE/NGCards/iCalRecurrenceRule.m b/SOPE/NGCards/iCalRecurrenceRule.m
index 1abc726bc..763a896dd 100644
--- a/SOPE/NGCards/iCalRecurrenceRule.m
+++ b/SOPE/NGCards/iCalRecurrenceRule.m
@@ -383,7 +383,10 @@ NSString *iCalWeekDayString[] = { @"SU", @"MO", @"TU", @"WE", @"TH", @"FR",
 
 - (void) setInterval: (NSString *) _interval
 {
-  [self setNamedValue: @"interval" to: _interval];
+  if (_interval && [_interval intValue] == 1)
+    [self setNamedValue: @"interval" to: nil];
+  else
+    [self setNamedValue: @"interval" to: _interval];
 }
 
 - (void) setCount: (NSString *) _count