diff --git a/src/core/sys/posix/signal.d b/src/core/sys/posix/signal.d
index 0dce8c53f3..47e699462b 100644
--- a/src/core/sys/posix/signal.d
+++ b/src/core/sys/posix/signal.d
@@ -44,7 +44,7 @@ version (X86_64)  version = X86_Any;
 version (Posix):
 extern (C):
 //nothrow:  // this causes http://issues.dlang.org/show_bug.cgi?id=12738 (which has been fixed)
-//@system:
+@system:
 
 //
 // Required