diff --git a/lib/spree/localized_number.rb b/lib/spree/localized_number.rb
index 05cc7e7e2e..f972399b0a 100644
--- a/lib/spree/localized_number.rb
+++ b/lib/spree/localized_number.rb
@@ -45,7 +45,7 @@ module Spree
     def self.valid_localizable_number?(number)
       return true unless number.is_a?(String) || number.respond_to?(:to_d)
       # Invalid if only two digits between dividers, or if any non-number characters
-      return false if number.to_s =~ /[.,]\d{2}[.,]/ || number.to_s =~ /[^0-9,.-]+/
+      return false if number.to_s =~ /[.,]\d{2}[.,]/ || number.to_s =~ /[^-0-9,.]+/
 
       true
     end
diff --git a/spec/lib/spree/localized_number_spec.rb b/spec/lib/spree/localized_number_spec.rb
index bafe0c822d..b19df7e7ef 100644
--- a/spec/lib/spree/localized_number_spec.rb
+++ b/spec/lib/spree/localized_number_spec.rb
@@ -58,6 +58,12 @@ describe Spree::LocalizedNumber do
       it "returns true" do
         expect(described_class.valid_localizable_number?(1599.99)).to eql true
       end
+
+      context "with a negative number" do
+        it "returns true" do
+          expect(described_class.valid_localizable_number?(-1599.99)).to eql true
+        end
+      end
     end
 
     context "with letters" do