diff --git a/cast.hpp b/cast.hpp
index a6acca54..b6166a7d 100644
--- a/cast.hpp
+++ b/cast.hpp
@@ -202,6 +202,7 @@ namespace cruft::cast {
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wcast-align"
 #pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wcast-qual"
 #if defined(COMPILER_GCC)
 #pragma GCC diagnostic ignored "-Wcast-function-type"
 #endif