diff --git a/src/ast.hpp b/src/ast.hpp
index 9ffca4a43f..0005f8a1f5 100644
--- a/src/ast.hpp
+++ b/src/ast.hpp
@@ -775,7 +775,7 @@ namespace Sass {
   struct Backtrace;
   typedef Environment<AST_Node*> Env;
   typedef const char* Signature;
-  typedef Expression* (*Native_Function)(Env&, Env&, Context&, Signature, ParserState, Backtrace*);
+  typedef Expression* (*Native_Function)(Env&, Env&, Context&, Signature, ParserState, Backtrace*, std::vector<CommaSequence_Selector*>);
   typedef const char* Signature;
   class Definition : public Has_Block {
   public:
diff --git a/src/eval.cpp b/src/eval.cpp
index 70a5a73dbc..60f3410730 100644
--- a/src/eval.cpp
+++ b/src/eval.cpp
@@ -829,7 +829,7 @@ namespace Sass {
       exp.backtrace_stack.push_back(&here);
       // eval the body if user-defined or special, invoke underlying CPP function if native
       if (body && !Prelexer::re_special_fun(name.c_str())) { result = body->perform(this); }
-      else if (func) { result = func(fn_env, *env, ctx, def->signature(), c->pstate(), backtrace()); }
+      else if (func) { result = func(fn_env, *env, ctx, def->signature(), c->pstate(), backtrace(), exp.selector_stack); }
       if (!result) error(std::string("Function ") + c->name() + " did not return a value", c->pstate());
       exp.backtrace_stack.pop_back();
     }
diff --git a/src/expand.cpp b/src/expand.cpp
index ab8a85f712..7b8fba9fbc 100644
--- a/src/expand.cpp
+++ b/src/expand.cpp
@@ -11,7 +11,7 @@
 
 namespace Sass {
 
-  Expand::Expand(Context& ctx, Env* env, Backtrace* bt)
+  Expand::Expand(Context& ctx, Env* env, Backtrace* bt, std::vector<CommaSequence_Selector*>* stack)
   : ctx(ctx),
     eval(Eval(*this)),
     env_stack(std::vector<Env*>()),
@@ -31,7 +31,8 @@ namespace Sass {
     call_stack.push_back(0);
     // import_stack.push_back(0);
     property_stack.push_back(0);
-    selector_stack.push_back(0);
+    if (stack == NULL) { selector_stack.push_back(0); }
+    else { selector_stack.insert(selector_stack.end(), stack->begin(), stack->end()); }
     media_block_stack.push_back(0);
     backtrace_stack.push_back(0);
     backtrace_stack.push_back(bt);
diff --git a/src/expand.hpp b/src/expand.hpp
index 6f2a6113ea..571fac326a 100644
--- a/src/expand.hpp
+++ b/src/expand.hpp
@@ -45,7 +45,7 @@ namespace Sass {
     void expand_selector_list(Selector*, CommaSequence_Selector* extender);
 
   public:
-    Expand(Context&, Env*, Backtrace*);
+    Expand(Context&, Env*, Backtrace*, std::vector<CommaSequence_Selector*>* stack = NULL);
     ~Expand() { }
 
     Statement* operator()(Block*);
diff --git a/src/functions.cpp b/src/functions.cpp
index a203b6c77f..3b1c45678a 100644
--- a/src/functions.cpp
+++ b/src/functions.cpp
@@ -1637,7 +1637,7 @@ namespace Sass {
         }
       }
       Function_Call* func = SASS_MEMORY_NEW(ctx.mem, Function_Call, pstate, name, args);
-      Expand expand(ctx, &d_env, backtrace);
+      Expand expand(ctx, &d_env, backtrace, &selector_stack);
       return func->perform(&expand.eval);
 
     }
@@ -1655,7 +1655,7 @@ namespace Sass {
     // { return ARG("$condition", Expression)->is_false() ? ARG("$if-false", Expression) : ARG("$if-true", Expression); }
     BUILT_IN(sass_if)
     {
-      Expand expand(ctx, &d_env, backtrace);
+      Expand expand(ctx, &d_env, backtrace, &selector_stack);
       bool is_true = !ARG("$condition", Expression)->perform(&expand.eval)->is_false();
       Expression* res = ARG(is_true ? "$if-true" : "$if-false", Expression);
       res = res->perform(&expand.eval);
diff --git a/src/functions.hpp b/src/functions.hpp
index 66c6b7bca0..4279a5b17e 100644
--- a/src/functions.hpp
+++ b/src/functions.hpp
@@ -7,7 +7,7 @@
 #include "sass/functions.h"
 
 #define BUILT_IN(name) Expression*\
-name(Env& env, Env& d_env, Context& ctx, Signature sig, ParserState pstate, Backtrace* backtrace)
+name(Env& env, Env& d_env, Context& ctx, Signature sig, ParserState pstate, Backtrace* backtrace, std::vector<CommaSequence_Selector*> selector_stack)
 
 namespace Sass {
   class Context;
@@ -17,7 +17,7 @@ namespace Sass {
   class Definition;
   typedef Environment<AST_Node*> Env;
   typedef const char* Signature;
-  typedef Expression* (*Native_Function)(Env&, Env&, Context&, Signature, ParserState, Backtrace*);
+  typedef Expression* (*Native_Function)(Env&, Env&, Context&, Signature, ParserState, Backtrace*, std::vector<CommaSequence_Selector*>);
 
   Definition* make_native_function(Signature, Native_Function, Context& ctx);
   Definition* make_c_function(Sass_Function_Entry c_func, Context& ctx);