From 958f2f8bdf18410cd3639c328e7a39dd1b446201 Mon Sep 17 00:00:00 2001
From: Mark Abraham <mark.j.abraham@gmail.com>
Date: Fri, 3 May 2024 10:06:11 +0000
Subject: [PATCH] Apply 1 suggestion(s) to 1 file(s)

---
 src/gromacs/gmxana/gmx_analyze.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gromacs/gmxana/gmx_analyze.cpp b/src/gromacs/gmxana/gmx_analyze.cpp
index d7569e9905e..64cafd0b035 100644
--- a/src/gromacs/gmxana/gmx_analyze.cpp
+++ b/src/gromacs/gmxana/gmx_analyze.cpp
@@ -936,7 +936,7 @@ static void print_fitted_function(const char*       fitfile,
             {
                 buf = gmx::concatenateBeforeExtension(fn_fitted, gmx::formatString("_%d", s));
             }
-            do_fit(out_fit, s, FALSE, n, t, val, npargs, ppa, oenv, buf.c_str());
+            do_fit(out_fit, s, FALSE, n, t, val, npargs, ppa, oenv, buf.u8string().c_str());
         }
     }
     gmx_ffclose(out_fit);