diff --git a/glue-codes/openfast-cpp/src/FAST_Prog.cpp b/glue-codes/openfast-cpp/src/FAST_Prog.cpp
index e6083f7ff3..46bae48a4e 100644
--- a/glue-codes/openfast-cpp/src/FAST_Prog.cpp
+++ b/glue-codes/openfast-cpp/src/FAST_Prog.cpp
@@ -3,8 +3,6 @@
 #include <iostream>
 #include <mpi.h>
 
-#include <filesystem>
-
 inline bool checkFileExists(const std::string& name) {
     struct stat buffer;   
     return (stat (name.c_str(), &buffer) == 0);