diff --git a/.build b/.build
index 410b14d..978b4e8 100644
--- a/.build
+++ b/.build
@@ -1 +1 @@
-25
\ No newline at end of file
+26
\ No newline at end of file
diff --git a/pylast.py b/pylast.py
index 580ad3b..a939f19 100644
--- a/pylast.py
+++ b/pylast.py
@@ -63,7 +63,7 @@ EVENT_MAYBE_ATTENDING = '1'
 EVENT_NOT_ATTENDING = '2'
 
 PERIOD_OVERALL = 'overall'
-PERIOD_7DAYs = "7day"
+PERIOD_7DAYS = "7day"
 PERIOD_3MONTHS = '3month'
 PERIOD_6MONTHS = '6month'
 PERIOD_12MONTHS = '12month'