diff --git a/src/Editor.tsx b/src/Editor.tsx
index b6a54a9..12c90a4 100644
--- a/src/Editor.tsx
+++ b/src/Editor.tsx
@@ -12,7 +12,6 @@ type EditorProps = {
     customFetcher?: (url: string) => Promise<any>;
     variables?: Variables;
     variablesInputURLs?: string[];
-    SDMXInputURLs?: string[];
     tools: Tools;
     onListErrors?: (errors: Error[]) => void;
     height?: string;
@@ -28,7 +27,6 @@ const Editor = ({
     customFetcher,
     variables,
     variablesInputURLs,
-    SDMXInputURLs,
     tools,
     height = "50vh",
     width = "100%",
@@ -109,7 +107,7 @@ const Editor = ({
                     setReady(true);
                 });
         }
-    }, [variablesInputURLs, SDMXInputURLs]);
+    }, [variablesInputURLs]);
 
     if (!ready) return null;
 
diff --git a/src/utils/providers.ts b/src/utils/providers.ts
index 46002a3..371c719 100644
--- a/src/utils/providers.ts
+++ b/src/utils/providers.ts
@@ -52,8 +52,10 @@ export const getEditorWillMount =
         const { id } = tools;
         return (monaco: typeof EditorApi) => {
             monaco.languages.register({ id });
-            const tokensProvider: TokensProvider = new TokensProvider(tools);
-            monaco.languages.setMonarchTokensProvider(id, tokensProvider.monarchLanguage());
+            if (tools.monarchDefinition) {
+                const tokensProvider: TokensProvider = new TokensProvider(tools);
+                monaco.languages.setMonarchTokensProvider(id, tokensProvider.monarchLanguage());
+            }
             monaco.editor.defineTheme(id, getTheme());
             monaco.editor.defineTheme("vtl-default", getVtlTheme("vtl-default"));
             monaco.editor.defineTheme("vtl-light", getVtlTheme("vtl-light"));