diff --git a/pkgs/by-name/op/opentype-sanitizer/package.nix b/pkgs/by-name/op/opentype-sanitizer/package.nix
index 2e7e7e62180e..00d61a6b32d6 100644
--- a/pkgs/by-name/op/opentype-sanitizer/package.nix
+++ b/pkgs/by-name/op/opentype-sanitizer/package.nix
@@ -21,6 +21,8 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-gsNMPNPcfHyOgjJnIrJ5tLYHbCfIfTowEhcaGOUPb2Q=";
   };
 
+  mesonFlags = [ "-Dcpp_std=c++14" ];
+
   buildInputs = [
     freetype
     gtest