diff --git a/kernel/compat.c b/kernel/compat.c
index fc9eb093..18197ae 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -890,6 +890,7 @@
 	case 1: set->sig[0] = compat->sig[0] | (((long)compat->sig[1]) << 32 );
 	}
 }
+EXPORT_SYMBOL_GPL(sigset_from_compat);
 
 asmlinkage long
 compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,