diff --git a/src/auto4_base.cpp b/src/auto4_base.cpp
index 388e1fa3d..e3a796f73 100644
--- a/src/auto4_base.cpp
+++ b/src/auto4_base.cpp
@@ -322,7 +322,8 @@ namespace Automation4 {
 
 		std::vector<std::future<std::unique_ptr<Script>>> script_futures;
 
-		for (auto tok : agi::Split(path, '|')) {
+		auto path_it = agi::Split(path, '|');
+		for (auto tok : std::set<agi::StringRange>(begin(path_it), end(path_it))) {
 			auto dirname = config::path->Decode(agi::str(tok));
 			if (!agi::fs::DirectoryExists(dirname)) continue;