diff --git a/include/csignal b/include/csignal
index 93adc59..9728266 100644
--- a/include/csignal
+++ b/include/csignal
@@ -43,7 +43,9 @@
 #include <__config>
 #include <signal.h>
 
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
+#endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD