diff --git a/django/contrib/gis/db/backends/base/operations.py b/django/contrib/gis/db/backends/base/operations.py
index a560768bff..5dafae760d 100644
--- a/django/contrib/gis/db/backends/base/operations.py
+++ b/django/contrib/gis/db/backends/base/operations.py
@@ -56,9 +56,9 @@ class BaseSpatialOperations(object):
 
     # Blacklist/set of known unsupported functions of the backend
     unsupported_functions = {
-        'Area', 'AsGeoHash', 'AsGeoJSON', 'AsGML', 'AsKML', 'AsSVG',
+        'Area', 'AsGeoJSON', 'AsGML', 'AsKML', 'AsSVG',
         'BoundingCircle', 'Centroid', 'Difference', 'Distance', 'Envelope',
-        'ForceRHR', 'Intersection', 'Length', 'MemSize', 'NumGeometries',
+        'ForceRHR', 'GeoHash', 'Intersection', 'Length', 'MemSize', 'NumGeometries',
         'NumPoints', 'Perimeter', 'PointOnSurface', 'Reverse', 'Scale',
         'SnapToGrid', 'SymDifference', 'Transform', 'Translate',
         'Union',
diff --git a/django/contrib/gis/db/backends/oracle/operations.py b/django/contrib/gis/db/backends/oracle/operations.py
index bb98846fc2..722ef9f29b 100644
--- a/django/contrib/gis/db/backends/oracle/operations.py
+++ b/django/contrib/gis/db/backends/oracle/operations.py
@@ -126,10 +126,10 @@ class OracleOperations(BaseSpatialOperations, DatabaseOperations):
     truncate_params = {'relate': None}
 
     unsupported_functions = {
-        'AsGeoHash', 'AsGeoJSON', 'AsGML', 'AsKML', 'AsSVG',
+        'AsGeoJSON', 'AsGML', 'AsKML', 'AsSVG',
         'BoundingCircle', 'Envelope',
-        'ForceRHR', 'MemSize', 'Scale',
-        'SnapToGrid', 'Translate', 'GeoHash',
+        'ForceRHR', 'GeoHash', 'MemSize', 'Scale',
+        'SnapToGrid', 'Translate',
     }
 
     def geo_quote_name(self, name):