diff --git a/src/vtable.ts b/src/vtable.ts
index f0889d4..f56bd20 100644
--- a/src/vtable.ts
+++ b/src/vtable.ts
@@ -170,7 +170,7 @@ export class VTable implements Property {
             declarations += `${INDENT}if (obj == NULL) {\n`;
             declarations += `${INDENT}${INDENT}return NULL;\n`;
             declarations += `${INDENT}}\n`;
-            declarations += `${INDENT}memcpy((void *) obj, (void *) vtable, sizeof (${this.#getName()});\n`;
+            declarations += `${INDENT}memcpy((void *) obj, (void *) vtable, sizeof (${this.#getName()}));\n`;
             declarations += `${INDENT}return obj;\n`;
             declarations += '}\n';
         }