diff --git a/frontend/src/metabase-lib/expressions/format.js b/frontend/src/metabase-lib/expressions/format.js
index aafb13b5e4e3ca8b4a3a61c5ffdc37fa098c4b53..7470813e9ec57b6c5b783d0156aa9018f1619d10 100644
--- a/frontend/src/metabase-lib/expressions/format.js
+++ b/frontend/src/metabase-lib/expressions/format.js
@@ -112,7 +112,7 @@ function formatFunction([fn, ...args], options) {
   const formattedName = getExpressionName(fn);
   const formattedArgs = args.map(arg => format(arg, options));
   return args.length === 0
-    ? formattedName
+    ? formattedName + "()"
     : `${formattedName}(${formattedArgs.join(", ")})`;
 }
 
diff --git a/frontend/src/metabase-lib/expressions/suggest.js b/frontend/src/metabase-lib/expressions/suggest.js
index 1ecc15602d202dcb48c0f37d30f4303f0b8cd939..2bdbb78ed66025b193cfe6b9864702f499a51bcf 100644
--- a/frontend/src/metabase-lib/expressions/suggest.js
+++ b/frontend/src/metabase-lib/expressions/suggest.js
@@ -16,11 +16,7 @@ import {
   formatSegmentName,
 } from "./index";
 
-const suggestionText = func => {
-  const { displayName, args } = func;
-  const suffix = args.length > 0 ? "(" : " ";
-  return displayName + suffix;
-};
+const suggestionText = func => func.displayName + "(";
 
 export function suggest({
   source,