diff --git a/js/src/methodjit/Compiler.cpp b/js/src/methodjit/Compiler.cpp
index 66844d171fb..65a9eb85bae 100644
--- a/js/src/methodjit/Compiler.cpp
+++ b/js/src/methodjit/Compiler.cpp
@@ -1176,7 +1176,7 @@ mjit::Compiler::generateMethod()
             frame.storeLocal(slot, true);
             frame.pop();
           }
-          END_CASE(JSOP_DEFFUN)
+          END_CASE(JSOP_DEFLOCALFUN_FC)
 
           BEGIN_CASE(JSOP_LAMBDA)
           {