diff --git a/cadoles/eole/plugins/modules/instance.py b/cadoles/eole/plugins/modules/instance.py
index 3002a9d..721c7c2 100644
--- a/cadoles/eole/plugins/modules/instance.py
+++ b/cadoles/eole/plugins/modules/instance.py
@@ -335,24 +335,30 @@ def run_module():
             for expectation_name, response in module.params['variables'].items():
                 expectations.set_expectation_response_by_name(expectation_name, response)
 
-    instance_process = pexpect.spawn(cmd, encoding='utf-8', timeout=60)
+    try:
+        instance_process = pexpect.spawn(cmd, encoding='utf-8', timeout=60)
 
-    some_index = 0
-    while some_index < nb_expectations:
-        p = instance_process.expect(patterns)
-        if p == 0:
-            break
-        if p == 1:
-            print(f'Some missing expectations for {instance_process.before}{instance_process.after}')
-            break
-        pattern = patterns[p]
-        for expectation in expectations.get_expectations_by_pattern(patterns[p]):
-            if expectation.is_the_one(instance_process.before):
-                expectation.answer(instance_process)
+        some_index = 0
+        while some_index < nb_expectations:
+            p = instance_process.expect(patterns)
+            if p == 0:
                 break
-        some_index += 1
-    result['changed'] = True
-    result['msg'] += f"Module {result['module']} instanciated"
+            if p == 1:
+                print(f'Some missing expectations for {instance_process.before}{instance_process.after}')
+                break
+            pattern = patterns[p]
+            for expectation in expectations.get_expectations_by_pattern(patterns[p]):
+                if expectation.is_the_one(instance_process.before):
+                    expectation.answer(instance_process)
+                    break
+            some_index += 1
+        result['changed'] = True
+        result['msg'] += f"Module {result['module']} instanciated"
+        module.exit_json(**result)
+    except Exception as err:
+        result['msg'] += err
+        result['changed'] = True
+        module.fail_json(**result)
 
 
 
@@ -369,7 +375,6 @@ def run_module():
 
     # in the event of a successful module execution, you will want to
     # simple AnsibleModule.exit_json(), passing the key/value results
-    module.exit_json(**result)
 
 
 def main():