diff --git a/pkgs/by-name/to/tome4/package.nix b/pkgs/by-name/to/tome4/package.nix
index 770e5974768b..777ee07186e4 100644
--- a/pkgs/by-name/to/tome4/package.nix
+++ b/pkgs/by-name/to/tome4/package.nix
@@ -26,7 +26,8 @@ stdenv.mkDerivation (finalAttrs: {
 
   prePatch = ''
     # http://forums.te4.org/viewtopic.php?f=42&t=49478&view=next#p234354
-    sed -i 's|#include <GL/glext.h>||' src/tgl.h
+    substituteInPlace src/tgl.h \
+      --replace-fail "#include <GL/glext.h>" ""
   '';
 
   nativeBuildInputs = [