diff --git a/django/db/backends/ado_mssql/wrapper.py b/django/db/backends/ado_mssql/base.py
similarity index 100%
rename from django/db/backends/ado_mssql/wrapper.py
rename to django/db/backends/ado_mssql/base.py
diff --git a/django/db/backends/mysql/wrapper.py b/django/db/backends/mysql/base.py
similarity index 100%
rename from django/db/backends/mysql/wrapper.py
rename to django/db/backends/mysql/base.py
diff --git a/django/db/backends/postgresql/wrapper.py b/django/db/backends/postgresql/base.py
similarity index 100%
rename from django/db/backends/postgresql/wrapper.py
rename to django/db/backends/postgresql/base.py
diff --git a/django/db/backends/sqlite3/wrapper.py b/django/db/backends/sqlite3/base.py
similarity index 100%
rename from django/db/backends/sqlite3/wrapper.py
rename to django/db/backends/sqlite3/base.py