diff --git a/feely_pona_build.cpp b/feely_pona_build.cpp
index efb45a5..5bda7e6 100644
--- a/feely_pona_build.cpp
+++ b/feely_pona_build.cpp
@@ -328,6 +328,7 @@ int main(int argc, char const **argv)
             if (Dqn_Fs_Exists(exe_path)) {
                 Dqn_FsFile exe_file = Dqn_Fs_OpenFile(exe_path, Dqn_FsFileOpen_OpenIfExist, Dqn_FsFileAccess_Read | Dqn_FsFileAccess_Write);
                 exe_is_locked       = exe_file.error_size;
+                Dqn_Fs_CloseFile(&exe_file);
             }
 
             if (!exe_is_locked) {