diff --git a/changelogs/fragments/46443-mongodb_user-fix-roles-default-value.yaml b/changelogs/fragments/46443-mongodb_user-fix-roles-default-value.yaml
new file mode 100644
index 0000000000..2feb2d0469
--- /dev/null
+++ b/changelogs/fragments/46443-mongodb_user-fix-roles-default-value.yaml
@@ -0,0 +1,2 @@
+minor_changes:
+- mongodb_user - Change value for parameter roles to empty (https://github.com/ansible/ansible/issues/46443)
diff --git a/lib/ansible/modules/database/mongodb/mongodb_user.py b/lib/ansible/modules/database/mongodb/mongodb_user.py
index 6e6093ff8d..f5634e9813 100644
--- a/lib/ansible/modules/database/mongodb/mongodb_user.py
+++ b/lib/ansible/modules/database/mongodb/mongodb_user.py
@@ -77,7 +77,6 @@ options:
               'dbAdminAnyDatabase'
             - "Or the following dictionary '{ db: DATABASE_NAME, role: ROLE_NAME }'."
             - "This param requires pymongo 2.5+. If it is a string, mongodb 2.4+ is also required. If it is a dictionary, mongo 2.6+  is required."
-        default: "readWrite"
     state:
         description:
             - The database user state
diff --git a/test/sanity/validate-modules/ignore.txt b/test/sanity/validate-modules/ignore.txt
index 412dc5342e..b19d2e3628 100644
--- a/test/sanity/validate-modules/ignore.txt
+++ b/test/sanity/validate-modules/ignore.txt
@@ -377,7 +377,6 @@ lib/ansible/modules/database/mongodb/mongodb_parameter.py E317
 lib/ansible/modules/database/mongodb/mongodb_parameter.py E323
 lib/ansible/modules/database/mongodb/mongodb_parameter.py E326
 lib/ansible/modules/database/mongodb/mongodb_user.py E322
-lib/ansible/modules/database/mongodb/mongodb_user.py E324
 lib/ansible/modules/database/mysql/mysql_replication.py E325
 lib/ansible/modules/database/mysql/mysql_replication.py E326
 lib/ansible/modules/database/mysql/mysql_user.py E322