diff --git a/lib/reporting/reports/customers/base.rb b/lib/reporting/reports/customers/base.rb
index a1c2382e55..f786518e20 100644
--- a/lib/reporting/reports/customers/base.rb
+++ b/lib/reporting/reports/customers/base.rb
@@ -50,10 +50,10 @@ module Reporting
         private
 
         def filter_to_completed_at(orders)
-          min = params.dig(:q, :completed_at_gt)
-          max = params.dig(:q, :completed_at_lt)
+          min = params.dig(:q, :completed_at_gt).presence
+          max = params.dig(:q, :completed_at_lt).presence
 
-          return orders if min.blank? || max.blank?
+          return orders if min.nil? && max.nil?
 
           orders.where(completed_at: [min..max])
         end
diff --git a/spec/lib/reports/customers_report_spec.rb b/spec/lib/reports/customers_report_spec.rb
index 8dddf65a3b..75d03e0615 100644
--- a/spec/lib/reports/customers_report_spec.rb
+++ b/spec/lib/reports/customers_report_spec.rb
@@ -244,18 +244,40 @@ module Reporting
               expect(subject.filter(orders)).to eq(orders)
             end
 
-            it "filters to a specific completed_at date" do
-              o1 = create(:order, completed_at: 1.day.ago)
-              o2 = create(:order, completed_at: 3.days.ago)
-              o3 = create(:order, completed_at: 5.days.ago)
+            describe "filters to a specific completed_at date range" do
+              let!(:o1) { create(:order, completed_at: 1.day.ago) }
+              let!(:o2) { create(:order, completed_at: 3.days.ago) }
+              let!(:o3) { create(:order, completed_at: 5.days.ago) }
 
-              allow(subject).to receive(:params).and_return(
-                q: {
-                  completed_at_gt: 1.day.before(o2.completed_at),
-                  completed_at_lt: 1.day.after(o2.completed_at)
-                }
-              )
-              expect(subject.filter(orders)).to eq([o2])
+              it do
+                allow(subject).to receive(:params).and_return(
+                  q: {
+                    completed_at_gt: 1.day.before(o2.completed_at),
+                    completed_at_lt: 1.day.after(o2.completed_at)
+                  }
+                )
+                expect(subject.filter(orders)).to eq([o2])
+              end
+
+              it "when completed_at_gt param is missing" do
+                allow(subject).to receive(:params).and_return(
+                  q: {
+                    completed_at_gt: "",
+                    completed_at_lt: 1.day.after(o2.completed_at)
+                  }
+                )
+                expect(subject.filter(orders)).to eq([o2, o3])
+              end
+
+              it "when completed_at_lt param is missing" do
+                allow(subject).to receive(:params).and_return(
+                  q: {
+                    completed_at_gt: 1.day.before(o2.completed_at),
+                    completed_at_lt: ""
+                  }
+                )
+                expect(subject.filter(orders)).to eq([o1, o2])
+              end
             end
 
             it "filters to a specific distributor" do