diff --git a/slirp_glue/qemu/compiler.h b/slirp_glue/qemu/compiler.h
index 9e12f26f..514151f3 100644
--- a/slirp_glue/qemu/compiler.h
+++ b/slirp_glue/qemu/compiler.h
@@ -56,6 +56,7 @@
 #endif
 
 #if defined (__clang__)
+  #pragma clang diagnostic ignored "-Wunknown-pragmas"
   #pragma clang diagnostic ignored "-Waddress-of-packed-member"
 #endif