diff --git a/src/main/webapp/src/pages/competition/editor/CMTMatchPanel.jsx b/src/main/webapp/src/pages/competition/editor/CMTMatchPanel.jsx
index feef8ab..2266118 100644
--- a/src/main/webapp/src/pages/competition/editor/CMTMatchPanel.jsx
+++ b/src/main/webapp/src/pages/competition/editor/CMTMatchPanel.jsx
@@ -41,6 +41,7 @@ export function CategorieSelect({catId, setCatId, menuActions}) {
     const setLoading = useLoadingSwitcher()
     const {data: cats, setData: setCats} = useRequestWS('getAllCategory', {}, setLoading);
     const {dispatch} = useWS();
+    const publicAffDispatch = usePubAffDispatch();
     const {connected, setText} = useOBS();
     const {t} = useTranslation("cm");
 
@@ -70,6 +71,8 @@ export function CategorieSelect({catId, setCatId, menuActions}) {
 
     useEffect(() => {
         setText("poule", cat ? cat.name : "");
+        if (!cat)
+            publicAffDispatch({type: 'SET_DATA', payload: {c1: undefined, c2: undefined, next: []}});
     }, [cat, connected]);
 
     return <>