diff --git a/LibC/signal.cpp b/LibC/signal.cpp
index 859d0d054b..dfb3a3a9a2 100644
--- a/LibC/signal.cpp
+++ b/LibC/signal.cpp
@@ -155,4 +155,10 @@ void siglongjmp(jmp_buf env, int val)
     longjmp(env, val);
 }
 
+int sigsuspend(const sigset_t*)
+{
+    dbgprintf("FIXME: Implement sigsuspend()\n");
+    ASSERT_NOT_REACHED();
+}
+
 }