diff --git a/src/tydra/threejs-exporter.hh b/src/tydra/threejs-exporter.hh
index c745fa62..7f5d78a1 100644
--- a/src/tydra/threejs-exporter.hh
+++ b/src/tydra/threejs-exporter.hh
@@ -19,6 +19,7 @@
 // Suppress warnings from nlohmann/json.hpp
 #ifdef __clang__
 #pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-warning-option"
 #pragma clang diagnostic ignored "-Wcovered-switch-default"
 #pragma clang diagnostic ignored "-Wdeprecated-literal-operator"
 #endif