diff --git a/django/contrib/gis/gdal/geometries.py b/django/contrib/gis/gdal/geometries.py
index 39cc4f8023..e76a5add5f 100644
--- a/django/contrib/gis/gdal/geometries.py
+++ b/django/contrib/gis/gdal/geometries.py
@@ -62,7 +62,7 @@ from django.contrib.gis.gdal.prototypes.srs import clone_srs
 # Regular expressions for recognizing HEXEWKB and WKT.
 hex_regex = re.compile(r'^[0-9A-F]+$', re.I)
 wkt_regex = re.compile(r'^(?P<type>POINT|LINESTRING|LINEARRING|POLYGON|MULTIPOINT|MULTILINESTRING|MULTIPOLYGON|GEOMETRYCOLLECTION)[ACEGIMLONPSRUTY\d,\.\-\(\) ]+$', re.I)
-json_regex = re.compile(r'^\{[\s\w,\.\"\'\:\[\]]+\}$')
+json_regex = re.compile(r'^\{[\s\w,\-\.\"\'\:\[\]]+\}$')
 
 #### OGRGeometry Class ####
 class OGRGeometry(object):
diff --git a/django/contrib/gis/tests/geometries.py b/django/contrib/gis/tests/geometries.py
index 0001a765a1..e9bc6f618b 100644
--- a/django/contrib/gis/tests/geometries.py
+++ b/django/contrib/gis/tests/geometries.py
@@ -152,5 +152,6 @@ buffer_geoms = ( (TestGeom('POINT(0 0)'),
                  )
 
 json_geoms = (TestGeom('POINT(100 0)', json='{ "type": "Point", "coordinates": [ 100.000000, 0.000000 ] }'),
+              TestGeom('POLYGON((0 0, -10 0, -10 -10, 0 -10, 0 0))', json='{ "type": "Polygon", "coordinates": [ [ [ 0.000000, 0.000000 ], [ -10.000000, 0.000000 ], [ -10.000000, -10.000000 ], [ 0.000000, -10.000000 ], [ 0.000000, 0.000000 ] ] ] }'),
               TestGeom('MULTIPOLYGON(((102 2, 103 2, 103 3, 102 3, 102 2)), ((100.0 0.0, 101.0 0.0, 101.0 1.0, 100.0 1.0, 100.0 0.0), (100.2 0.2, 100.8 0.2, 100.8 0.8, 100.2 0.8, 100.2 0.2)))', json='{ "type": "MultiPolygon", "coordinates": [ [ [ [ 102.000000, 2.000000 ], [ 103.000000, 2.000000 ], [ 103.000000, 3.000000 ], [ 102.000000, 3.000000 ], [ 102.000000, 2.000000 ] ] ], [ [ [ 100.000000, 0.000000 ], [ 101.000000, 0.000000 ], [ 101.000000, 1.000000 ], [ 100.000000, 1.000000 ], [ 100.000000, 0.000000 ] ], [ [ 100.200000, 0.200000 ], [ 100.800000, 0.200000 ], [ 100.800000, 0.800000 ], [ 100.200000, 0.800000 ], [ 100.200000, 0.200000 ] ] ] ] }'),
               )