diff --git a/tests/lex/test_lex.py b/tests/lex/test_lex.py
index 0172242..bc0b01d 100644
--- a/tests/lex/test_lex.py
+++ b/tests/lex/test_lex.py
@@ -20,6 +20,8 @@
 
 from hy.models.expression import HyExpression
 from hy.models.integer import HyInteger
+from hy.models.float import HyFloat
+from hy.models.complex import HyComplex
 from hy.models.symbol import HySymbol
 from hy.models.string import HyString
 from hy.models.dict import HyDict
@@ -95,6 +97,26 @@ def test_lex_integers():
     assert objs == [HyInteger(42)]
 
 
+def test_lex_expression_float():
+    """ Make sure expressions can produce floats """
+    objs = tokenize("(foo 2.)")
+    assert objs == [HyExpression([HySymbol("foo"), HyFloat(2.)])]
+    objs = tokenize("(foo -0.5)")
+    assert objs == [HyExpression([HySymbol("foo"), HyFloat(-0.5)])]
+    objs = tokenize("(foo 1.e7)")
+    assert objs == [HyExpression([HySymbol("foo"), HyFloat(1.e7)])]
+
+
+def test_lex_expression_complex():
+    """ Make sure expressions can produce complex """
+    objs = tokenize("(foo 2.j)")
+    assert objs == [HyExpression([HySymbol("foo"), HyComplex(2.j)])]
+    objs = tokenize("(foo -0.5j)")
+    assert objs == [HyExpression([HySymbol("foo"), HyComplex(-0.5j)])]
+    objs = tokenize("(foo 1.e7j)")
+    assert objs == [HyExpression([HySymbol("foo"), HyComplex(1.e7j)])]
+
+
 def test_lex_line_counting():
     """ Make sure we can count lines / columns """
     entry = tokenize("(foo (one two))")[0]