diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/definitions/commands_helpers.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/definitions/commands_helpers.ts
index e38533fbc9a5f..c4854fdea70e0 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/definitions/commands_helpers.ts
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/definitions/commands_helpers.ts
@@ -49,12 +49,17 @@ export function checkFunctionContent(arg: ESQLFunction) {
   if (isAggregation(arg) || isFunctionOperatorParam(arg)) {
     return true;
   }
-  return (arg as ESQLFunction).args.every(
-    (subArg): boolean =>
+  return (arg as ESQLFunction).args.every((subArg): boolean => {
+    // Differentiate between array and non-array arguments
+    if (Array.isArray(subArg)) {
+      return subArg.every((item) => checkFunctionContent(item as ESQLFunction));
+    }
+    return (
       isLiteralItem(subArg) ||
       isAggregation(subArg) ||
       (isNotAnAggregation(subArg) ? checkFunctionContent(subArg) : false)
-  );
+    );
+  });
 }
 
 export function checkAggExistence(arg: ESQLFunction): boolean {
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/test_suites/validation.command.stats.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/test_suites/validation.command.stats.ts
index edd5e7fa75e15..2a7fdb1607583 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/test_suites/validation.command.stats.ts
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/test_suites/validation.command.stats.ts
@@ -79,6 +79,11 @@ export const validationStatsCommandTestSuite = (setup: helpers.Setup) => {
             await expectErrors('from a_index | STATS abs( doubleField + sum( doubleField )) ', [
               'Cannot combine aggregation and non-aggregation values in [STATS], found [abs(doubleField+sum(doubleField))]',
             ]);
+            // This is a valid expression as it is an operation on two aggregation functions
+            await expectErrors(
+              'from a_index | STATS sum(doubleField) / (min(doubleField) + max(doubleField))  ',
+              []
+            );
           });
 
           test('errors on each aggregation field, which does not contain at least one agg function', async () => {