diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 649f4280e..717007f54 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -628,7 +628,7 @@ update
   def graph_author_commits_per_month(repository)
     @date_to = Date.today
     @date_from = @date_to << 1
-    @date_from = Date.civil(@date_from.year, @date_from.month, 1)
+    @date_from = Date.civil(@date_from.year, @date_from.month,  @date_from.day)
     commits_by_author = Changeset.count(:all, :group => :committer,
                                          :conditions => ["#{Changeset.table_name}.repository_id = ? AND #{Changeset.table_name}.commit_date BETWEEN ? AND ?", repository.id, @date_from, @date_to])
     commits_by_author = commits_by_author.to_a.sort! {|x, y| x.last <=> y.last}.last(40)
@@ -664,7 +664,7 @@ update
   def author_commits_six_month(repository)
     @date_to = Date.today
     @date_from = @date_to << 6
-    @date_from = Date.civil(@date_from.year, @date_from.month, 1)
+    @date_from = Date.civil(@date_from.year, @date_from.month, @date_from.day)
     commits_by_author = Changeset.count(:all, :group => :committer,
                                         :conditions => ["#{Changeset.table_name}.repository_id = ? AND #{Changeset.table_name}.commit_date BETWEEN ? AND ?", repository.id, @date_from, @date_to])
     commits_by_author = commits_by_author.to_a.sort! {|x, y| x.last <=> y.last}.last(40)