diff --git a/include/vlog/edbconf.h b/include/vlog/edbconf.h
index 6f3306c5..4599ad82 100644
--- a/include/vlog/edbconf.h
+++ b/include/vlog/edbconf.h
@@ -30,7 +30,7 @@ class EDBConf {
 
         EDBConf(std::string rawcontent) : EDBConf(rawcontent, true) {}
 
-        void setRootPath(std::string path);
+        VLIBEXP void setRootPath(std::string path);
 
         VLIBEXP std::string getRootPath() const;