diff --git a/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/aliases.ts b/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/aliases.ts
index 78fe8b7f9549f..d797815012640 100644
--- a/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/aliases.ts
+++ b/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/aliases.ts
@@ -12,7 +12,7 @@
 const aliases: Record<string, string[]> = {
   STATS: ['STATS_BY', 'BY', 'STATS...BY', 'STATS ... BY'],
   OPERATORS: ['LIKE', 'RLIKE', 'IN'],
-  JOIN: ['LOOKUP JOIN'],
+  LOOKUP_JOIN: ['LOOKUPJOIN'],
 };
 
 const getAliasMap = () => {
diff --git a/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/esql_doc_base.ts b/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/esql_doc_base.ts
index ce7cabcdc120e..4ce8517878da9 100644
--- a/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/esql_doc_base.ts
+++ b/x-pack/platform/plugins/shared/inference/server/tasks/nl_to_esql/doc_base/esql_doc_base.ts
@@ -43,8 +43,7 @@ export class EsqlDocumentBase {
     }: GetDocsOptions = {}
   ) {
     const keywords = rawKeywords.map((raw) => {
-      // LOOKUP JOIN  has space so we want to retain as is
-      let keyword = raw.toLowerCase().includes('join') ? raw : format(raw);
+      let keyword = format(raw);
       if (resolveAliases) {
         keyword = tryResolveAlias(keyword);
       }
diff --git a/x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/scenarios/esql/index.spec.ts b/x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/scenarios/esql/index.spec.ts
index 33fe67ff865f9..2739e2f7369f2 100644
--- a/x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/scenarios/esql/index.spec.ts
+++ b/x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/scenarios/esql/index.spec.ts
@@ -28,7 +28,7 @@ async function evaluateEsqlQuery({
   const evaluation = await chatClient.evaluate(conversation, [
     ...(expected
       ? [
-          `Returns a ES|QL query that is functionally equivalent to:      
+          `Returns a ES|QL query that is functionally equivalent to:
       ${expected}. It's OK if column names are slightly different, as long as the expected end result is the same.`,
         ]
       : []),