diff --git a/src/inspect.cpp b/src/inspect.cpp
index bd0389224..b56fd89aa 100644
--- a/src/inspect.cpp
+++ b/src/inspect.cpp
@@ -1042,7 +1042,7 @@ namespace Sass {
       case Complex_Selector::REFERENCE:
         append_mandatory_space();
         append_string("/");
-        c->reference()->perform(this);
+        if (c->reference()) c->reference()->perform(this);
         append_string("/");
         append_mandatory_space();
       break;