diff --git a/Application/src/tracker/trex.cpp b/Application/src/tracker/trex.cpp
index 6e914ba5ba26005f2759890d1068328d921902bd..2cc29cb9815231e15a121219348883a7338e4c27 100644
--- a/Application/src/tracker/trex.cpp
+++ b/Application/src/tracker/trex.cpp
@@ -45,6 +45,7 @@ std::string conda_environment_path(const char* argv) {
 }
 
 int main(int argc, char** argv) {
+    std::stringstream ss;
     std::string target_path = "";
     auto conda_prefix = conda_environment_path(argv[0]);
     if(!conda_prefix.empty()) {