diff --git a/src/preamble.js b/src/preamble.js
index fb8954566aa82..eb885e27c21a8 100644
--- a/src/preamble.js
+++ b/src/preamble.js
@@ -503,10 +503,9 @@ var splitModuleProxyHandler = {
       // When the table is dynamically laid out, the placeholder functions names
       // are offsets from the table base. In the main module, the table base is
       // always 1.
-      return wasmTable.get(1 + parseInt(prop))(...args);
-#else
-      return wasmTable.get(prop)(...args);
+      prop = 1 + parseInt(prop);
 #endif
+      return wasmTable.get({{{ toIndexType('prop') }}})(...args);
 #endif
     }
   }