diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 2209fbfae..0f9c462d6 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -5018,7 +5018,7 @@ bool CWallet::InitLoadWallet()
 
     std::string walletFile = GetArg("-wallet", DEFAULT_WALLET_DAT);
 
-    if (walletFile.find_first_of("/\\") != std::string::npos) {
+    if (boost::filesystem::path(walletFile).filename() != walletFile) {
         return InitError(_("-wallet parameter must only specify a filename (not a path)"));
     } else if (SanitizeString(walletFile, SAFE_CHARS_FILENAME) != walletFile) {
         return InitError(_("Invalid characters in -wallet filename"));