diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 6f2d924..bd57a79 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -358,6 +358,7 @@
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
 /*
  * "Conditional" syscalls