diff --git a/app/controllers/admin/epp_logs_controller.rb b/app/controllers/admin/epp_logs_controller.rb
index e9d8542ed..46740a8d9 100644
--- a/app/controllers/admin/epp_logs_controller.rb
+++ b/app/controllers/admin/epp_logs_controller.rb
@@ -7,8 +7,8 @@ class Admin::EppLogsController < AdminController
     @q.sorts = 'id desc' if @q.sorts.empty?
 
     @epp_logs = @q.result
-    @epp_logs = @epp_logs.where("extract(epoch from created_at) >= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_gteq])) if params[:q][:created_at_gteq]
-    @epp_logs = @epp_logs.where("extract(epoch from created_at) <= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_lteq])) if params[:q][:created_at_lteq]
+    @epp_logs = @epp_logs.where("extract(epoch from created_at) >= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_gteq])) if params[:q][:created_at_gteq].present?
+    @epp_logs = @epp_logs.where("extract(epoch from created_at) <= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_lteq])) if params[:q][:created_at_lteq].present?
     @epp_logs = @epp_logs.page(params[:page])
   end
 
diff --git a/app/controllers/admin/repp_logs_controller.rb b/app/controllers/admin/repp_logs_controller.rb
index 2b28c7227..ff306b0fc 100644
--- a/app/controllers/admin/repp_logs_controller.rb
+++ b/app/controllers/admin/repp_logs_controller.rb
@@ -7,8 +7,8 @@ class Admin::ReppLogsController < AdminController
     @q.sorts = 'id desc' if @q.sorts.empty?
 
     @repp_logs = @q.result
-    @repp_logs = @repp_logs.where("extract(epoch from created_at) >= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_gteq])) if params[:q][:created_at_gteq]
-    @repp_logs = @repp_logs.where("extract(epoch from created_at) <= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_lteq])) if params[:q][:created_at_lteq]
+    @repp_logs = @repp_logs.where("extract(epoch from created_at) >= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_gteq])) if params[:q][:created_at_gteq].present?
+    @repp_logs = @repp_logs.where("extract(epoch from created_at) <= extract(epoch from ?::timestamp)", Time.parse(params[:q][:created_at_lteq])) if params[:q][:created_at_lteq].present?
     @repp_logs = @repp_logs.page(params[:page])
   end