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-rw-r--r--django/contrib/gis/db/backends/mysql/schema.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/django/contrib/gis/db/backends/mysql/schema.py b/django/contrib/gis/db/backends/mysql/schema.py
index 27f6df174a..f3ddf14fa7 100644
--- a/django/contrib/gis/db/backends/mysql/schema.py
+++ b/django/contrib/gis/db/backends/mysql/schema.py
@@ -54,7 +54,7 @@ class MySQLGISSchemaEditor(DatabaseSchemaEditor):
self.create_spatial_indexes()
def remove_field(self, model, field):
- if isinstance(field, GeometryField) and field.spatial_index:
+ if isinstance(field, GeometryField) and field.spatial_index and not field.null:
index_name = self._create_spatial_index_name(model, field)
sql = self._delete_index_sql(model, index_name)
try: