diff --git a/app/assets/javascripts/admin/controllers/admin-reports.js.es6 b/app/assets/javascripts/admin/controllers/admin-reports.js.es6
index b07e3f69c..61b46740a 100644
--- a/app/assets/javascripts/admin/controllers/admin-reports.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-reports.js.es6
@@ -27,7 +27,7 @@ export default Ember.Controller.extend({
   },
 
   @computed('model.type')
-  showFilterOptions(modelType) {
+  showCategoryOptions(modelType) {
     return !modelType.match(/_private_messages$/);
   },
 
diff --git a/app/assets/javascripts/admin/templates/reports.hbs b/app/assets/javascripts/admin/templates/reports.hbs
index a3b6797f7..12303f27e 100644
--- a/app/assets/javascripts/admin/templates/reports.hbs
+++ b/app/assets/javascripts/admin/templates/reports.hbs
@@ -1,15 +1,15 @@
 <h3>{{model.title}}</h3>
 
 <div class="admin-reports-filter">
-  {{#if showFilterOptions}}
-    {{i18n 'admin.dashboard.reports.start_date'}} {{date-picker-past value=startDate}}
-    {{i18n 'admin.dashboard.reports.end_date'}} {{date-picker-past value=endDate}}
+  {{i18n 'admin.dashboard.reports.start_date'}} {{date-picker-past value=startDate}}
+  {{i18n 'admin.dashboard.reports.end_date'}} {{date-picker-past value=endDate}}
+  {{#if showCategoryOptions}}
     {{combo-box valueAttribute="value" content=categoryOptions value=categoryId}}
-    {{#if showGroupOptions}}
-      {{combo-box valueAttribute="value" content=groupOptions value=groupId}}
-    {{/if}}
-    {{d-button action="refreshReport" class="btn-primary" label="admin.dashboard.reports.refresh_report" icon="refresh"}}
   {{/if}}
+  {{#if showGroupOptions}}
+    {{combo-box valueAttribute="value" content=groupOptions value=groupId}}
+  {{/if}}
+  {{d-button action="refreshReport" class="btn-primary" label="admin.dashboard.reports.refresh_report" icon="refresh"}}
   {{d-button action="exportCsv" label="admin.export_csv.button_text" icon="download"}}
 </div>
 
diff --git a/app/models/post.rb b/app/models/post.rb
index 83c669fe4..df3d51ed2 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -557,8 +557,8 @@ class Post < ActiveRecord::Base
     result.group('date(posts.created_at)').order('date(posts.created_at)').count
   end
 
-  def self.private_messages_count_per_day(since_days_ago, topic_subtype)
-    private_posts.with_topic_subtype(topic_subtype).where('posts.created_at > ?', since_days_ago.days.ago).group('date(posts.created_at)').order('date(posts.created_at)').count
+  def self.private_messages_count_per_day(start_date, end_date, topic_subtype)
+    private_posts.with_topic_subtype(topic_subtype).where('posts.created_at >= ? AND posts.created_at <= ?', start_date, end_date).group('date(posts.created_at)').order('date(posts.created_at)').count
   end
 
   def reply_history(max_replies=100, guardian=nil)
diff --git a/app/models/report.rb b/app/models/report.rb
index e5135dcac..ecb7c27f3 100644
--- a/app/models/report.rb
+++ b/app/models/report.rb
@@ -205,7 +205,7 @@ class Report
   # Private messages counts:
 
   def self.private_messages_report(report, topic_subtype)
-    basic_report_about report, Post, :private_messages_count_per_day, default_days, topic_subtype
+    basic_report_about report, Post, :private_messages_count_per_day, report.start_date, report.end_date, topic_subtype
     add_counts report, Post.private_posts.with_topic_subtype(topic_subtype), 'posts.created_at'
   end