diff --git a/rollup/rollup.config.ts b/rollup/rollup.config.ts
index d7e91d53..a66b0079 100644
--- a/rollup/rollup.config.ts
+++ b/rollup/rollup.config.ts
@@ -277,8 +277,8 @@ export default (args: Record<string, string>): rollup.RollupOptions[] => {
                   }
                 } else if (node.callee.type === 'Identifier' && PURE_FUNCTIONS.has(node.callee.name)) {
                   path.replace(addComment(node))
-                } else if (node.callee.type === 'FunctionExpression') {
-                  // Mark IIFE as pure, because typescript compile enums as IIFE
+                } else if (node.callee.type === 'FunctionExpression' && node.arguments.length === 1) {
+                  // Mark IIFE with single parameter as pure, because typescript compile enums as IIFE
                   path.replace(addComment(node))
                 }
                 this.traverse(path)
@@ -360,8 +360,8 @@ export default (args: Record<string, string>): rollup.RollupOptions[] => {
               }
             } else if (node.callee.type === 'Identifier' && PURE_FUNCTIONS.has(node.callee.name)) {
               path.replace(addComment(node))
-            } else if (node.callee.type === 'FunctionExpression') {
-              // Mark IIFE as pure, because typescript compile enums as IIFE
+            } else if (node.callee.type === 'FunctionExpression' && node.arguments.length === 1) {
+              // Mark IIFE with single parameter as pure, because typescript compile enums as IIFE
               path.replace(addComment(node))
             }
             this.traverse(path)