diff --git a/src/db.cpp b/src/db.cpp
index a1af5d0..ce0a0c3 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -38,7 +38,7 @@ void CDBEnv::EnvShutdown()
     if (ret != 0)
         printf("EnvShutdown exception: %s (%d)\n", DbEnv::strerror(ret), ret);
     if (!fMockDb)
-        DbEnv(0).remove(path.string().c_str(), 0);
+        DbEnv((uint32_t)0).remove(path.string().c_str(), 0);
 }
 
 CDBEnv::CDBEnv() : dbenv(DB_CXX_NO_EXCEPTIONS)