diff --git a/source/components/Aide.js b/source/components/Aide.js
index 77f1bf868..c7cd3df97 100644
--- a/source/components/Aide.js
+++ b/source/components/Aide.js
@@ -7,6 +7,7 @@ import {EXPLAIN_VARIABLE} from '../actions'
 
 import References from './rule/References'
 import './Aide.css'
+import {capitalise0} from '../utils'
 
 @connect(
 	state =>
@@ -39,7 +40,7 @@ export default class Aide extends Component {
 						className="fa fa-times-circle"
 						onClick={stopExplaining} ></i>
 					<p
-						dangerouslySetInnerHTML={{__html: this.renderExplanationMarkdown(text, rule.titre)}}>
+						dangerouslySetInnerHTML={{__html: this.renderExplanationMarkdown(text, rule.titre || capitalise0(rule.name))}}>
 					</p>
 					{/* { possibilities &&
 						<p>
diff --git a/source/components/conversation/validators.js b/source/components/conversation/validators.js
index ba3a10e80..4e9a47cef 100644
--- a/source/components/conversation/validators.js
+++ b/source/components/conversation/validators.js
@@ -9,6 +9,6 @@ export let number = {
 }
 
 export let int = {
-	test: v => /^[0-9]+/.test(v),
+	test: v => /^[0-9]+$/.test(v),
 	error: 'Vous devez entrer un entier, par ex. 16'
 }
diff --git a/source/reducers.js b/source/reducers.js
index 6d09926c6..50a1b2c28 100644
--- a/source/reducers.js
+++ b/source/reducers.js
@@ -45,7 +45,8 @@ export let reduceSteps = (tracker, flatRules, answerSource) => (state, action) =
 		...state,
 		analysedSituation,
 		situationGate: situationGate,
-		extraSteps: []
+		extraSteps: [],
+		explainedVariable: null
 	}
 
 	if (action.type == START_CONVERSATION) {