diff --git a/changelogs/fragments/40-mysql_user_fix_error_when_host_all_used.yml b/changelogs/fragments/40-mysql_user_fix_error_when_host_all_used.yml
new file mode 100644
index 0000000..7eb70f2
--- /dev/null
+++ b/changelogs/fragments/40-mysql_user_fix_error_when_host_all_used.yml
@@ -0,0 +1,2 @@
+bugfixes:
+- mysql_user - fix module's crush when modifying a user with ``host_all`` (https://github.com/ansible-collections/community.mysql/issues/39).
diff --git a/tests/integration/targets/test_mysql_user/tasks/main.yml b/tests/integration/targets/test_mysql_user/tasks/main.yml
index 04c90f3..0e9f7b4 100644
--- a/tests/integration/targets/test_mysql_user/tasks/main.yml
+++ b/tests/integration/targets/test_mysql_user/tasks/main.yml
@@ -196,6 +196,7 @@
         name: '{{ user_name_1 }}'
         priv: '%db.*:INSERT'
         append_privs: yes
+        host_all: yes
         password: '{{ user_password_1 }}'
 
     - name: show grants access for user1 on multiple database