diff --git a/pkgs/by-name/wx/wxhexeditor/package.nix b/pkgs/by-name/wx/wxhexeditor/package.nix
index ed4d3b588b04..ee4c2601e1b1 100644
--- a/pkgs/by-name/wx/wxhexeditor/package.nix
+++ b/pkgs/by-name/wx/wxhexeditor/package.nix
@@ -62,6 +62,7 @@ stdenv.mkDerivation rec {
   preConfigure = "patchShebangs .";
 
   makeFlags = lib.optionals stdenv.cc.isGNU [
+    "CFLAGS=-std=c17"
     "OPTFLAGS=-fopenmp"
   ];