diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim
index 4e28f5fe58..5b08c74ca8 100644
--- a/compiler/semexprs.nim
+++ b/compiler/semexprs.nim
@@ -2438,6 +2438,7 @@ proc semExportExcept(c: PContext, n: PNode): PNode =
       strTableAdd(c.module.tab, s)
       result.add newSymNode(s, n.info)
     s = nextIter(i, exported.tab)
+  markUsed(c, n.info, exported)
 
 proc semExport(c: PContext, n: PNode): PNode =
   result = newNodeI(nkExportStmt, n.info)