diff --git a/lib/liquid/parser.rb b/lib/liquid/parser.rb
index 5c2613c8..ba4bad57 100644
--- a/lib/liquid/parser.rb
+++ b/lib/liquid/parser.rb
@@ -52,11 +52,18 @@ module Liquid
       case token[0]
       when :string
         string
+      when :number
+        number
       else
         parse_expression(expression_string)
       end
     end
 
+    def number
+      num = consume(:number)
+      Expression.parse_number(num)
+    end
+
     def string
       consume(:string)[1..-2]
     end
diff --git a/test/integration/expression_test.rb b/test/integration/expression_test.rb
index 166df250..fd5273fa 100644
--- a/test/integration/expression_test.rb
+++ b/test/integration/expression_test.rb
@@ -67,7 +67,7 @@ class ExpressionTest < Minitest::Test
     Liquid::Template.parse(template, expression_cache: cache).render
 
     assert_equal(
-      ["1", "2", "x", "y"],
+      ["x", "y"],
       cache.to_a.map { _1[0] }.sort,
     )
   end
@@ -91,7 +91,7 @@ class ExpressionTest < Minitest::Test
     cache = parse_context.instance_variable_get(:@expression_cache)
 
     assert_equal(
-      ["1", "2", "x", "y"],
+      ["x", "y"],
       cache.to_a.map { _1[0] }.sort,
     )
   end
@@ -112,7 +112,7 @@ class ExpressionTest < Minitest::Test
     Liquid::Template.parse(template, expression_cache: cache).render
 
     assert_equal(
-      ["1", "2", "x", "y"],
+      ["x", "y"],
       cache.to_a.map { _1[0] }.sort,
     )
   end
diff --git a/test/unit/parser_unit_test.rb b/test/unit/parser_unit_test.rb
index 9bf737f0..117114bf 100644
--- a/test/unit/parser_unit_test.rb
+++ b/test/unit/parser_unit_test.rb
@@ -58,6 +58,14 @@ class ParserUnitTest < Minitest::Test
     assert_equal('"wut"', p.expression_string)
   end
 
+  def test_number
+    p = new_parser('-1 0 1 2.0')
+    assert_equal(-1, p.number)
+    assert_equal(0, p.number)
+    assert_equal(1, p.number)
+    assert_equal(2.0, p.number)
+  end
+
   def test_string
     p = new_parser("'s1' \"s2\" 'this \"s3\"' \"that 's4'\"")
     assert_equal('s1', p.string)